EndMill_6.0_gray 6237 End Mill Holder CAT2011 TC

User Manual: 6237

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End Mill Holders

End Mill Holders

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End Mill Holders

800-543-6237
www.lyndexnikken.com

End Mill Holders

End Mill Holder Features
Featuring the highest taper contact and high quality steel, our End Mill Holders provide extreme rigidity for even
the heaviest machining applications.
Shank style available from stock: CAT, BT, HSK, NMTB, and Straight, with inch or metric bores.
High rigidity, stubby style, extended lengths and Aerospace whistle notch End Mill Holders also available.

Aerospace End Mill Holders
Lyndex-Nikken Aerospace End Mill Holders are field
tested and proven to prevent the end mill from pullout,
unlike other competitors' holders
Unique Design and Built-in Features
• End Mill Holder bore does not exceed 0.0002" beyond
nominal dimension

Aerospace End
Mill Holder

• Dual support screws to secure depth adjustment
screw and side lock screw
• Tapped fine 2B internal threads for
precision adjustment
• AT3 taper grind to match the grind tolerance of your
machine spindle
• Balanced for high-speed machining (up to
18,000RPM)
• Made from high quality 4340 Nickel Chrome
Molybdenum Heat Treated Japanese Steel

5 degree angle to
prevent cutter pullout

• End Mill Holder must be used with 5 degree whistle
notch cutter (NAS 987)
Our Aerospace End Mill Holders will help you
produce aerospace parts with greater accuracy
and efficiency.

Large diameter
depth adjustment screw
for greater rigidity

10

800-543-6237
www.lyndexnikken.com

End Mill Holders

End Mill Holders

CAT End Mill Holders
• End mill inner bore T.I.R. < 0.0002
• Through-spindle coolant capability
• AT3 or better taper
• Available in high-speed balanceable versions

TIR: < .0002 run out in ID bore

Milling

Speed: up to 20,000 rpm

Tapping

Please note that the maximum RPM listed in our catalog may vary depending
on the toolholder shank, weight, balanceability and the G rating.

Coolant-thru: jet slots (optional)

★★★★✩
★✩✩✩✩

Set-up: quick and easy

CAT 40 - Inch
Style

d

L

L1

L2

D

D1

Set Screw
Part Number

C40S6-0125-1.38

Stubby

1/8”

1.38”

0.74”

-

0.75”

-

S6-32X1/4

C4006-0125-2.36

Standard

1/8”

2.36”

0.63”

-

0.75”

-

S6-32X1/4

C4016-0125-4.00
C40S6-0187-1.38

Standard
Stubby

1/8”
3/16”

4.00”
1.38”

0.63”
0.94”

-

0.75”
0.75”

-

S6-32X1/4
S8-32X1/4

C4006-0187-2.50

Standard

3/16”

2.50”

0.86”

-

0.75”

-

S8-32X1/4

C4016-0187-4.00
C40S6-0250-1.38

Standard
Stubby

3/16”
1/4”

4.00”
1.38”

0.86”
1.18”

-

0.75”
0.79”

-

S8-32X1/4
S1/4-28X1/4

C4006-0250-2.50

Standard

1/4”

2.50”

1.10”

-

0.79”

-

S1/4-28X1/4

d
D

Part Number

C4016-0250-4.00 Standard
1/4”
C4046-0250-9.00 Ext. Length 1/4”
C40S6-0312-1.38 Stubby
5/16”

4.00”
9.00”
1.38”

1.10”
1.5”
1.34”

6.12”
-

0.79”
0.79”
0.87”

1.75”
-

S1/4-28X1/4
S1/4-28X1/4
S5/16-24X1/4

C4006-0312-2.50

Standard

5/16”

2.50”

1.26”

-

0.87”

-

S5/16-24X1/4

C4016-0312-4.00
C40S6-0375-1.38

Standard
Stubby

5/16”
3/8”

4.00”
1.38”

1.26”
1.34”

-

0.87”
1.00”

-

S5/16-24X1/4
S3/8-24X5/16

C4006-0375-2.50

Standard

3/8”

2.50”

1.26”

-

1.00”

-

S3/8-24X5/16

C4016-0375-4.00

Standard

3/8”

4.00”

1.26”

-

1.00”

-

S3/8-24X5/16

C4026-0375-5.00 Standard
3/8”
C4046-0375-9.00 Ext. Length 3/8”
C4006-0437-2.50 Standard 7/16”

5.00”
9.00”
2.50”

1.26”
1.5”
1.50”

6.12”
-

1.00”
1.00”
1.38”

1.75”
-

S3/8-24X5/16
S3/8-24X5/16
S7/16-20X3/8

C4016-0437-4.00
C40S6-0500-1.75

Standard
Stubby

7/16”
1/2”

4.00”
1.75”

1.50”
1.50”

-

1.38”
1.38”

-

S7/16-20X3/8
S7/16-20X3/8

C4006-0500-2.50

Standard

1/2”

2.50”

1.50”

-

1.38”

-

S7/16-20X3/8

C4016-0500-4.00

Standard

1/2”

4.00”

1.50”

-

1.38”

-

S7/16-20X3/8

C4026-0500-5.00 Standard
C4046-0500-9.00 Ext. Length
C40S6-0625-1.75 Stubby

1/2”
1/2”
5/8”

5.00”
9.00”
1.75”

1.50”
1.5”
1.61”

6.12”
-

1.38”
1.38”
1.65”

1.75”
-

S7/16-20X3/8
S7/16-20X3/8
S9/16-18X1/2

C4006-0625-3.00

Standard

5/8”

3.00”

1.61”

-

1.65”

-

S9/16-18X1/2

C4016-0625-4.00

Standard

5/8”

4.00”

1.61”

-

1.65”

-

S9/16-18X1/2

C4026-0625-5.50 Standard
C4046-0625-9.00 Ext. Length
C40S6-0750-1.75 Stubby

5/8”
5/8”
3/4”

5.50”
9.00”
1.75”

1.61”
1.5”
1.77”

6.12”
-

1.65”
1.65”
1.89”

1.75”
-

S9/16-18X1/2
S9/16-18X1/2
S5/8-18X1/2

C4006-0750-3.00

Standard

3/4”

3.00”

1.77”

-

1.75”

-

S5/8-18X1/2

C4016-0750-4.00

Standard

3/4”

4.00”

1.77”

-

1.75”

-

S5/8-18X1/2

3/4”
3/4”

5.50”
9.00”

1.77”
-

-

1.75”
1.75”

-

S5/8-18X1/2
S5/8-18X1/2

C4026-0750-5.50 Standard
C4046-0750-9.00 Ext. Length

L

L1

Stubby

L
L1
d
D
Standard

D1
L2 L
D

Set Screws are included. Back-up screws not included.
Extended length end mill holders can be modified to DIN standard.

L1

d
Extended Length

Accessories:
Set Screws
Page 28

Set Screws for
Aerospace Holders
Page 28

Tool Jaw
Page 212

Pull Stud
Pages 139-140

11

End Mill Holders

800-543-6237
www.lyndexnikken.com

End Mill Holders

CAT End Mill Holders
CAT 40 - Inch (cont.)
d

L

L1

L2

D

D1

Set Screw
Part Number

C40S6-0875-1.75 Stubby
C4006-0875-3.50 Standard
C4016-0875-6.00 Standard
C4046-0875-9.00 Ext. Length

7/8”
7/8”
7/8”
7/8”

1.75”
3.50”
6.00”
9.00”

2.08”
2.08”
2.08”
-

-

1.94”
2.00”
2.00”
2.00”

-

S5/8-18X1/2
S5/8-18X1/2 (2)
S5/8-18X1/2 (2)
S5/8-18X1/2 (2)

C40S6-1000-2.00 Stubby
C4006-1000-4.00 Standard
C4016-1000-6.00 Standard
C4046-1000-9.00 Ext. Length

1”
1”
1”
1”

2.00”
4.00”
6.00”
9.00”

2.36”
2.36”
2.36”
-

-

2.25”
2.36”
2.36”
2.36”

-

S3/4-16X11/16
S3/4-16X11/16 (2)
S3/4-16X11/16 (2)
S3/4-16X11/16 (2)

Part Number

Style

C40S6-1250-2.00

Stubby

1-1/4”

2.00”

2.28”

-

2.25”

-

S3/4-16X7/16

C4006-1250-4.00

Standard

1-1/4”

4.00”

2.55”

-

2.48”

-

S3/4-16X11/16 (2)

C4016-1250-6.00

Standard

1-1/4”

6.00”

2.55”

-

2.48”

-

S3/4-16X11/16 (2)

C4006-1500-4.50

Standard

1-1/2”

4.50”

2.55”

-

2.99”

-

S3/4-16X11/16 (2)

C4016-1500-6.00

Standard

1-1/2”

6.00”

2.83”

-

2.99”

-

S3/4-16X11/16 (2)

L

L1
d
D

Stubby

Set Screws are included. Back-up screws not included.
Extended length end mill holders can be modified to DIN standard.

CAT 40 - Metric
Style

d

L

L1

D

Set Screw
Part Number

C4006-6-2.50

Standard

6mm

2.50”

1.10”

0.78”

S1/4-28X1/4

C4006-8-2.50

Standard

8mm

2.50”

1.25”

0.87”

S5/16-24X1/4

C4006-10-2.50

Standard

10mm

2.50”

1.25”

1.00”

S3/8-24X5/16

C4006-12-2.50

Standard

12mm

2.50”

1.50”

1.38”

S7/16-20X3/8

C4006-14-3.00

Standard

14mm

3.00”

1.61”

1.65”

S9/16-18X1/2

C4006-16-3.00

Standard

16mm

3.00”

1.61”

1.65”

S9/16-18X1/2

C4006-18-3.00

Standard

18mm

3.00”

1.77”

1.75”

S5/8-18x1/2

C4006-20-3.00

Standard

20mm

3.00”

1.77”

1.75”

S5/8-18x1/2

C4006-25-4.00

Standard

25mm

4.00”

2.36”

2.36”

S3/4-16X11/16 (2)

C4006-32-4.00

Standard

32mm

4.00”

2.36”

2.48”

S3/4-16X11/16 (2)

Part Number

L
L1
d
D
Standard

D1

Set Screws are included. Back-up screws not included.

L2 L
D

L1

d
Extended Length

Accessories:
Set Screws
Page 28

12

Set Screws for
Aerospace Holders
Page 28

Tool Jaw
Page 212

Pull Stud
Pages 139-140

800-543-6237
www.lyndexnikken.com

End Mill Holders

End Mill Holders

CAT End Mill Holders
CAT 50 -Inch
Style

d

L

L1

L2

D

D1

Set Screw
Part Number

C50S6-0250-1.38

Stubby

1/4”

1.38”

1.10”

-

0.79”

-

S1/4-28X1/4

C5006-0250-2.50

Standard

1/4”

2.50”

1.10”

-

0.79”

-

S1/4-28X1/4

C5016-0250-4.00

Standard

1/4”

4.00”

1.10”

-

0.79”

-

S1/4-28X1/4

C5026-0250-6.00

Standard

1/4”

6.00”

1.10”

-

0.79”

-

S1/4-28X1/4

C5036-0250-8.00 Ext. Length 1/4”
C5006-0312-2.50 Standard 5/16”

8.00”
2.50”

1.5”
1.26”

4.76”
-

0.79”
0.87”

1.62”
-

S1/4-28X1/4
S5/16-24X1/4

C5016-0312-4.00

Standard

5/16”

4.00”

1.26”

-

0.87”

-

S5/16-24X1/4

C5026-0312-6.00
C50S6-0375-1.38

Standard
Stubby

5/16”
3/8”

6.00”
1.38”

1.26”
1.26”

-

0.87”
1.00”

-

S5/16-24X1/4
S3/8-24X5/16

C5006-0375-2.50

Standard

3/8”

2.50”

1.26”

-

1.00”

-

S3/8-24X5/16

C5016-0375-4.00

Standard

3/8”

4.00”

1.26”

-

1.00”

-

S3/8-24X5/16

C5026-0375-6.00

Standard

3/8”

6.00”

1.26”

-

1.00”

-

S3/8-24X5/16

Part Number

C5036-0375-8.00 Ext. Length

3/8”

8.00”

1.5”

5.12”

1.00”

2.75”

S3/8-24X5/16

C5066-0375-15.00 Ext. Length 3/8”
C5006-0437-2.50 Standard 7/16”

15.00”
2.50”

1.25”
1.50”

12.12”
-

1.00”
1.38”

2.75”
-

S3/8-24X5/16
S7/16-20X3/8

C5016-0437-4.00

7/16”

4.00”

1.50”

-

1.38”

-

S7/16-20X3/8

C5026-0437-6.00 Standard 7/16”
C5036-0437-8.00 Ext. Length 7/16”
C50S6-0500-1.75
Stubby
1/2”

Standard

6.00”
8.00”
1.75”

1.53”
1.5”
1.50”

5.12”
-

1.38”
1.38”
1.38”

2.75”
-

S7/16-20X3/8
S7/16-20X3/8
S7/16-20X3/8

C5006-0500-2.63

Standard

1/2”

2.63”

1.50”

-

1.38”

-

S7/16-20X3/8

C5016-0500-4.00

Standard

1/2”

4.00”

1.50”

-

1.38”

-

S7/16-20X3/8

C5026-0500-6.00

Standard

1/2”

6.00”

1.50”

-

1.38”

-

S7/16-20X3/8

C5036-0500-8.00 Ext. Length

1/2”

8.00”

1.5”

5.12”

1.38”

2.75”

S7/16-20X3/8

C5066-0500-15.00 Ext. Length
C50S6-0625-1.75
Stubby

1/2”
5/8”

15.00”
1.75”

1.5”
1.61”

12.12”
-

1.38”
1.65”

2.75”
-

S7/16-20X3/8
S9/16-18X1/2

C5006-0625-3.00

Standard

5/8”

3.00”

1.61”

-

1.65”

-

S9/16-18X1/2

C5016-0625-4.00

Standard

5/8”

4.00”

1.61”

-

1.65”

-

S9/16-18X1/2

C5026-0625-6.00

Standard

5/8”

6.00”

1.61”

-

1.65”

-

S9/16-18X1/2

C5036-0625-8.00 Ext. Length

5/8”

8.00”

1.5”

5.12”

1.65”

2.75”

S9/16-18X1/2

C5066-0625-15.00 Ext. Length
C50S6-0750-1.75
Stubby

5/8”
3/4”

15.00”
1.75”

1.5”
1.77”

12.12”
-

1.65”
1.89”

2.75”
-

S9/16-18X1/2
S5/8-18X1/2

C5006-0750-3.00

Standard

3/4”

3.00”

1.77”

-

1.89”

-

S5/8-18X1/2

C5016-0750-4.00

Standard

3/4”

4.00”

1.77”

-

1.89”

-

S5/8-18X1/2

C5026-0750-6.00

Standard

L

L1
d
D

Stubby

L
L1
d
D
Standard

D1
L2 L

3/4”

6.00”

1.77”

-

1.89”

-

S5/8-18X1/2

C5036-0750-8.00 Ext. Length

3/4”

8.00”

1.5”

5.12”

1.89”

2.75”

S5/8-18X1/2

D

C5066-0750-15.00 Ext. Length
C50S6-0875-1.75
Stubby

3/4”
7/8”

15.00”
1.75”

1.76”
2.08”

11.86”
-

1.89”
2.00”

2.75”
-

S5/8-18X1/2
S5/8-18X1/2

d

C5006-0875-3.75

Standard

7/8”

3.75”

2.08”

-

2.00”

-

S5/8-18X1/2 (2)

C5016-0875-6.00

Standard

7/8”

6.00”

2.08”

-

2.00”

-

S5/8-18X1/2 (2)

7/8”
1”

15.00”
2.00”

2.76”
2.36”

10.87”
-

2.00”
2.36”

2.75”
-

S5/8-18X1/2 (2)
S3/4-16X11/16

C5066-0875-15.00 Ext. Length
C50S6-1000-2.00
Stubby
C5006-1000-4.00

Standard

1”

4.00”

2.36”

-

2.36”

-

S3/4-16X11/16 (2)

C5016-1000-6.00

Standard

1”

6.00”

2.36”

-

2.36”

-

S3/4-16X11/16 (2)

C5026-1000-8.00 Ext. Length

1”

8.00”

2.76”

3.87”

2.36”

2.75” S3/4-16X11/16 (2)

C5066-1000-15.00 Ext. Length

1”

15.00”

2.76”

10.87”

2.36”

2.75” S3/4-16X11/16 (2)

L1

Extended Length

Accessories:
Set Screws
Page 28

Set Screws for
Aerospace Holders
Page 28

Tool Jaw
Page 212

Pull Stud
Pages 139-140

13

End Mill Holders

800-543-6237
www.lyndexnikken.com

End Mill Holders

CAT End Mill Holders
CAT 50 - Inch (cont.)
Part Number

Set Screw
Part Number

Style

d

L

L1

L2

D

D1

C50S6-1250-2.00

Stubby

1-1/4”

2.00”

2.55”

-

2.75”

-

S3/4-16X11/16

C5006-1250-4.00

Standard

1-1/4”

4.00”

2.55”

-

2.48”

-

S3/4-16X11/16 (2)

C5016-1250-6.00

Standard

-

S3/4-16X11/16 (2)

1-1/4”

6.00”

2.55”

-

2.48”

C5026-1250-8.00 Ext. Length 1-1/4”

8.00”

2.76”

3.87”

2.48”

2.75” S3/4-16X11/16 (2)

C5066-1250-15.00 Ext. Length 1-1/4”
C50S6-1500-2.25
Stubby
1-1/2”

15.00”
2.25”

2.76”
2.83”

10.87”
-

2.48”
2.75”

2.75” S3/4-16X11/16 (2)
S3/4-16X11/16

C5006-1500-4.50

Standard

1-1/2”

4.50”

2.83”

-

2.99”

-

S3/4-16X11/16 (2)

C5016-1500-7.00

Standard

1-1/2”

7.00”

2.83”

-

2.99”

-

S3/4-16X11/16 (2)

C5026-1500-9.00

Standard

1-1/2”

9.00”

2.83”

-

2.99”

-

S3/4-16X11/16 (2)

C50S6-2000-3.63

Stubby

2”

3.63”

3.34”

-

3.74”

-

S1”-14X7/8 (1)
S1”-17X7/16 (1)

C5026-2000-10.00 Standard

2”

10.00”

3.34”

-

3.74”

-

S1”-14X7/8 (2)

C5006-2000-5.37

Standard

2”

5.37”

3.34”

-

3.74”

-

S1”-14X7/8 (2)

C5016-2000-8.00
C5006-2500-6.00

Standard
Standard

2”
2-1/2”

8.00”
6.00”

3.34”
3.66”

-

3.74”
4.25”

-

S1”-14X7/8 (2)
S1”-14X7/8 (2)

L

L1
d
D

Stubby

Set Screws are included. Back-up screws not included.
Extended length End Mill Holders can be modified to DIN standard.

L

CAT 50 - Metric
Part Number

Style

C5006-6-2.50

Standard

C5006-8-2.50
C5006-10-2.50

d

L

L1

D

L1

Set Screw
Part Number

6mm

2.50”

1.10”

0.79”

S1/4-28X1/4

Standard

8mm

2.50”

1.10”

0.87”

S5/16-24X1/4

Standard

10mm

2.50”

1.26”

1.00”

S3/8-24X5/16

C5006-12-2.63

Standard

12mm

2.63”

1.50”

1.38”

S7/16-20X3/8

C5006-14-3.00

Standard

14mm

3.00”

1.61”

1.65”

S9/16-18X1/2

C5006-16-3.00

Standard

16mm

3.00”

1.61”

1.65”

S9/16-18X1/2

C5006-18-3.00

Standard

18mm

3.00”

1.77”

1.89”

S5/8-18X1/2

C5006-20-3.00

Standard

20mm

3.00”

1.77”

1.89”

S5/8-18X1/2

C5006-25-4.00

Standard

25mm

4.00”

2.36”

2.36”

S3/4-16X11/16 (2)

C5006-32-4.00

Standard

32mm

4.00”

2.55”

2.48”

S3/4-16X11/16 (2)

C5006-40-4.50

Standard

40mm

4.50”

2.95”

3.07”

S3/4-16X11/16 (2)

C5006-42-4.50

Standard

42mm

4.50”

2.83”

3.07”

S3/4-16X11/16 (2)

C5006-50-5.37

Standard

50mm

5.37”

3.35”

3.74”

S1”-14X7/8 (2)

d
D
Standard

D1
L2 L
D

Set Screws are included. Back-up screws not included.

L1

d
Extended Length

Accessories:
Set Screws
Page 28

14

Set Screws for
Aerospace Holders
Page 28

Tool Jaw
Page 212

Pull Stud
Pages 139-140

800-543-6237
www.lyndexnikken.com

End Mill Holders

End Mill Holders

CAT End Mill Holders - DIN
CAT40 - DIN - Inch
Style

d

L

L1

D

Set Screw
Part Number

C4006-0125-2.36DIN

Standard

1/8”

2.36”

0.63”

0.75”

S6-32X1/4

C4016-0125-4.00DIN
C4006-0187-2.50DIN

Standard
Standard

1/8”
3/16”

4.00”
2.50”

0.63”
0.86”

0.75”
0.75”

S6-32X1/4
S8-32X1/4

C4016-0187-4.00DIN
C4006-0250-2.50DIN

Standard
Standard

3/16”
1/4”

4.00”
2.50”

0.86”
1.10”

0.75”
0.79”

S8-32X1/4
S1/4-28X1/4

C4016-0250-4.00DIN
C4006-0312-2.50DIN

Standard
Standard

1/4”
5/16”

4.00”
2.50”

1.10”
1.26”

0.79”
0.87”

SS1/4-28X1/4
S5/16-24X1/4

C4016-0312-4.00DIN
C4006-0375-2.50DIN

Standard
Standard

5/16”
3/8”

4.00”
2.50”

1.26”
1.26”

0.87”
1.00”

S5/16-24X1/4
S3/8-24X5/16

C4016-0375-4.00DIN
C4006-0437-2.50DIN

Standard
Standard

3/8”
7/16”

4.00”
2.50”

1.26”
1.50”

1.00”
1.38”

S3/8-24X5/16
S7/16-20X3/8

C4016-0437-4.00DIN
C4006-0500-2.50DIN

Standard
Standard

7/16”
1/2”

4.00”
2.50”

1.50”
1.50”

1.38”
1.38”

S7/16-20X3/8
S7/16-20X3/8

C4016-0500-4.00DIN
C4006-0625-3.00DIN

Standard
Standard

1/2”
5/8”

4.00”
3.00”

1.50”
1.61”

1.38”
1.65”

S7/16-20X3/8
S9/16-18X1/2

C4016-0625-4.50DIN
C4006-0750-3.00DIN

Standard
Standard

5/8”
3/4”

4.50”
3.00”

1.61”
1.77”

1.65”
1.75”

S9/16-18X1/2
S5/8-18X1/2

C4016-0750-4.50DIN
C4006-0875-3.50DIN

Standard
Standard

3/4”
7/8”

4.50”
3.50”

1.77”
2.08”

1.75”
2.00”

S5/8-18X1/2
S5/8-18X1/2 (2)

C4016-0875-5.00DIN
C4006-1000-4.00DIN

Standard
Standard

7/8”
1”

5.00”
4.00”

2.08”
2.36”

2.00”
2.36”

S5/8-18X1/2 (2)
S3/4-16X11/16 (2)

C4016-1000-5.50DIN
C4006-1250-4.00DIN

Standard
Standard

1”
1-1/4”

5.50”
4.00”

2.36”
2.55”

2.36”
2.48”

S3/4-16X11/16 (2)
S3/4-16X11/16 (2)

C4016-1250-5.50DIN
C4006-1500-4.50DIN

Standard
Standard

1-1/4”
1-1/2”

5.50”
4.50”

2.55”
2.60”

2.48”
2.99”

S3/4-16X11/16 (2)
S3/4-16X11/16 (2)

C4016-1500-6.00DIN

Standard

1-1/2”

6.00”

2.60”

2.99”

S3/4-16X11/16 (2)

Part Number

L
L1
d
D

Set Screws are included. Back-up screws not included.
“DIN” designates suitability for coolant through the flange per DIN 69871 Form B specs.

CT40 - DIN - Metric
Part Number

Set Screw
Part Number

Style

d

L

L1

D

C4006-6-2.50DIN

Standard

6mm

2.50”

1.10”

0.78”

S1/4-28X1/4

C4006-8-2.50DIN

Standard

8mm

2.50”

1.25”

0.87”

S5/16-24X1/4

C4006-10-2.50DIN

Standard

10mm

2.50”

1.25”

1.00”

S3/8-24X5/16

C4006-12-2.50DIN

Standard

12mm

2.50”

1.50”

1.38”

S7/16-20X3/8

C4006-14-3.00DIN

Standard

14mm

3.00”

1.61”

1.65”

S9/16-18X1/2

C4006-16-3.00DIN

Standard

16mm

3.00”

1.61”

1.65”

S9/16-18X1/2

C4006-18-3.00DIN

Standard

18mm

3.00”

1.77”

1.75”

S5/8-18x1/2

C4006-20-3.00DIN

Standard

20mm

3.00”

1.77”

1.75”

S5/8-18x1/2

d

C4006-25-4.00DIN

Standard

25mm

4.00”

2.36”

2.36”

S3/4-16X11/16 (2)

C4006-32-4.00DIN

Standard

32mm

4.00”

2.36”

2.48”

S3/4-16X11/16 (2)

D

L
L1

Set Screws are included. Back-up screws not included.
“DIN” designates suitability for coolant through the flange per DIN 69871 Form B specs.

Accessories:
Set Screws
Page 28

Set Screws for
Aerospace Holders
Page 28

Tool Jaw
Page 212

Pull Stud
Pages 139-140

15

End Mill Holders

800-543-6237
www.lyndexnikken.com

End Mill Holders

CAT End Mill Holders - DIN
CAT50 - DIN - Inch
Part Number

L

L1

Set Screw
Part Number

Style

d

D

C5006-0250-2.50DIN

Standard

1/4”

2.50”

1.10”

0.79”

S1/4-28X1/4

C5016-0250-4.00DIN

Standard

1/4”

4.00”

1.10”

0.79”

S1/4-28X1/4

C5026-0250-6.00DIN
C5006-0312-2.50DIN

Standard
Standard

1/4”
5/16”

6.00”
2.50”

1.10”
1.26”

0.79”
0.87”

S1/4-28X1/4
S5/16-24X1/4

C5016-0312-4.00DIN

Standard

5/16”

4.00”

1.30”

0.87”

S5/16-24X1/4

C5026-0312-6.00DIN
C5006-0375-2.50DIN

Standard
Standard

5/16”
3/8”

6.00”
2.50”

1.30”
1.26”

0.87”
1.00”

S5/16-24X1/4
S3/8-24X5/16

C5016-0375-4.00DIN

Standard

3/8”

4.00”

1.26”

1.00”

S3/8-24X5/16

d

C5026-0375-6.00DIN
C5006-0437-2.50DIN

Standard
Standard

3/8”
7/16”

6.00”
2.50”

1.26”
1.50”

1.00”
1.38”

S3/8-24X5/16
S7/16-20X3/8

D

C5016-0437-4.00DIN

Standard

7/16”

4.00”

1.50”

1.38”

S7/16-20X3/8

C5026-0437-6.00DIN
C5006-0500-2.63DIN

Standard
Standard

7/16”
1/2”

6.00”
2.63”

1.53”
1.50”

1.38”
1.38”

S7/16-20X3/8
S7/16-20X3/8

C5016-0500-4.00DIN

Standard

1/2”

4.00”

1.50”

1.38”

S7/16-20X3/8

C5026-0500-6.00DIN
C5006-0625-3.00DIN

Standard
Standard

1/2”
5/8”

6.00”
3.00”

1.50”
1.61”

1.38”
1.65”

S7/16-20X3/8
S9/16-18X1/2

C5016-0625-4.00DIN

Standard

5/8”

4.00”

1.61”

1.65”

S9/16-18X1/2

C5026-0625-6.00DIN
C5006-0750-3.00DIN

Standard
Standard

5/8”
3/4”

6.00”
3.00”

1.61”
1.77”

1.65”
1.89”

S9/16-18X1/2
S5/8-18X1/2

C5016-0750-4.00DIN

Standard

3/4”

4.00”

1.77”

1.89”

S5/8-18X1/2

C5026-0750-6.00DIN
C5006-0875-3.75DIN

Standard
Standard

3/4”
7/8”

6.00”
3.75”

1.77”
2.08”

1.89”
2.00”

S5/8-18X1/2
S5/8-18X1/2 (2)

C5016-0875-6.00DIN

Standard

7/8”

6.00”

2.08”

2.00”

S5/8-18X1/2 (2)

C5026-0875-8.00DIN
C5006-1000-4.00DIN

Standard
Standard

7/8”
1”

8.00”
4.00”

2.08”
2.36”

2.00”
2.36”

S5/8-18X1/2 (2)
S3/4-16X11/16 (2)

C5016-1000-6.00DIN

Standard

1”

6.00”

2.36”

2.36”

S3/4-16X11/16 (2)

C5026-1000-8.00DIN
C5006-1250-4.00DIN

Standard
Standard

1”
1-1/4”

8.00”
4.00”

2.36”
2.55”

2.36”
2.48”

S3/4-16X11/16 (2)
S3/4-16X11/16 (2

C5016-1250-6.00DIN

Standard

1-1/4”

6.00”

2.55”

2.48”

S3/4-16X11/16 (2)

C5026-1250-8.00DIN
C5006-1500-4.50DIN

Standard
Standard

1-1/4”
1-1/2”

8.00”
4.50”

2.55”
2.75”

2.48”
2.99”

S3/4-16X11/16 (2)
S3/4-16X11/16 (2)

C5016-1500-7.00DIN

Standard

1-1/2”

7.00”

2.75”

2.99”

S3/4-16X11/16 (2)

C5026-1500-9.00DIN
C5006-2000-5.37DIN
C5006-2500-6.00DIN

Standard
Standard
Standard

1-1/2”
2”
2-1/2”

9.00”
5.37”
6.00”

2.75”
3.34”
3.66”

2.99”
3.74”
4.25”

S3/4-16X11/16 (2)
S1”-14X7/8 (2)
S1”-14X7/8 (2)

L
L1

Set Screws are included. Back-up screws not included.
“DIN” designates suitability for coolant through the flange per DIN 69871 Form B specs.
DIN extended length end mill holders are available. Please call us for more information.

Accessories:
Set Screws
Page 28

16

Set Screws for
Aerospace Holders
Page 28

Tool Jaw
Page 212

Pull Stud
Pages 139-140

800-543-6237
www.lyndexnikken.com

End Mill Holders

End Mill Holders

CAT End Mill Holders
CAT50 - DIN - Metric
Part Number

Style

d

L

L1

D

Set Screw
Part Number

C5006-6-2.50DIN

Standard

6mm

2.50”

1.10”

0.79”

S1/4-28X1/4

C5006-8-2.50DIN

Standard

8mm

2.50”

1.10”

0.87”

S5/16-24X1/4

C5006-10-2.50DIN

Standard

10mm

2.50”

1.26”

1.00”

S3/8-24X5/16

C5006-12-2.63DIN

Standard

12mm

2.63”

1.50”

1.38”

S7/16-20X3/8

C5006-14-3.00DIN

Standard

14mm

3.00”

1.61”

1.65”

S9/16-18X1/2

C5006-16-3.00DIN

Standard

16mm

3.00”

1.61”

1.65”

S9/16-18X1/2

C5006-18-3.00DIN

Standard

18mm

3.00”

1.77”

1.89”

S5/8-18X1/2

C5006-20-3.00DIN

Standard

20mm

3.00”

1.77”

1.89”

S5/8-18X1/2

d

C5006-25-4.00DIN

Standard

25mm

4.00”

2.36”

2.36”

S3/4-16X11/16 (2)

D

C5006-32-4.00DIN

Standard

32mm

4.00”

2.55”

2.48”

S3/4-16X11/16 (2)

C5006-40-4.50DIN

Standard

40mm

4.50”

2.76”

3.07”

S3/4-16X11/16 (2)

C5006-42-4.50DIN

Standard

42mm

4.50”

2.76”

3.07”

S3/4-16X11/16 (2)

C5006-50-5.37DIN

Standard

50mm

5.37”

3.35”

3.74”

S1-14X7/8 (2)

L
L1

Set Screws are included. Back-up screws not included.
“DIN” designates suitability for coolant through the flange per DIN 69871 Form B specs.

CAT50 Aerospace
Style

d

L

L1

D

Set Screw
Part Number

C5006-0375-2.82A

Standard

3/8”

2.82”

1.52”

1.37”

S3/8-24UNF

C5016-0375-4.69A
C5026-0375-6.69A
C5006-0500-2.73A

Standard
Standard
Standard

3/8”
3/8”
1/2”

4.69”
6.69”
2.73”

1.52”
1.52”
1.68”

1.37”
1.37”
1.63”

S3/8-24UNF
S3/8-24UNF
S3/8-24UNF

C5016-0500-4.60A

Standard

1/2”

4.60”

1.68”

1.63”

S3/8-24UNF

C5026-0500-6.60A
C5006-0625-2.66A

Standard
Standard

1/2”
5/8”

6.60”
2.66”

1.68”
1.74”

1.63”
1.81”

S3/8-24UNF
S1/2-20UNF

C5016-0625-4.53A

Standard

5/8”

4.53”

1.74”

1.81”

S1/2-20UNF

C5026-0625-6.53A
C5006-0750-2.63A

Standard
Standard

5/8”
3/4”

6.53”
2.63”

1.74”
2.01”

1.81”
2.00”

S1/2-20UNF
S1/2-20UNF

C5016-0750-4.50A

Standard

3/4”

4.50”

2.01”

2.00”

S1/2-20UNF

C5026-0750-6.50A
C5006-0875-2.63A

Standard
Standard

3/4”
7/8”

6.50”
2.63”

2.01”
2.01”

2.00”
2.25”

S1/2-20UNF
S1/2-20UNF

C5016-0875-4.50A

Standard

7/8”

4.50”

2.01”

2.25”

S1/2-20UNF

C5026-0875-6.50A
C5006-1000-3.00A

Standard
Standard

7/8”
1”

6.50”
3.00”

2.01”
2.27”

2.25”
2.63”

S1/2-20UNF
S3/4-16x7/16

C5016-1000-4.50A

Standard

1”

4.50”

2.27”

2.63”

S3/4-16x7/16

C5026-1000-6.50A
C5006-1250-3.00A

Standard
Standard

1”
1-1/4”

6.50”
3.00”

2.27”
2.27”

2.63”
2.87”

S3/4-16x7/16
S3/4-16x7/16

C5016-1250-4.50A

Standard

1-1/4”

4.50”

2.27”

2.87”

S3/4-16x7/16

C5026-1250-6.50A
C5006-1500-3.00A
C5006-2000-5.35A

Standard
Standard
Standard

1-1/4”
1-1/2”
2”

6.50”
3.00”
5.35”

2.27”
2.27”
3.38”

2.87”
3.25”
4.00”

S3/4-16x7/16
S3/4-16x7/16
S3/4-16x7/16(2)

C5016-2000-7.35A
C5006-2500-5.35A

Standard
Standard

2”
2-1/2”

7.35”
5.35”

3.38”
3.38”

4.00”
5.00”

S3/4-16x7/16(2)
S3/4-16x7/16(2)

C5016-2500-7.35A

Standard

2-1/2”

7.35”

3.38”

5.00”

S3/4-16x7/16(2)

Part Number

L
L1
d
D
CAT50 Aerospace End Mill holders take back-up screws
3/4-16UNFx2-1/4.
Aerospace End Mill Holders accept end mills with a 5°
angled flat shank (per NAS 987).
Side double locking screw only available in 1” and above.

Set Screws are included. Back-up screws not included.

Accessories:
Set Screws
Page 28

Set Screws for
Aerospace Holders
Page 28

Tool Jaw
Page 212

Pull Stud
Pages 139-140

17

End Mill Holders

800-543-6237
www.lyndexnikken.com

End Mill Holders

BT End Mill Holders
• End mill inner bore T.I.R. < 0.0002
• Through-spindle coolant capability
• AT3 or better taper
• Available in high-speed balanceable versions

TIR: < .0002 run out in ID bore

Milling

Speed: up to 20,000 rpm

Tapping

Please note that the maximum RPM listed in our catalog may vary depending
on the toolholder shank, weight, balanceability and the G rating.

Coolant-thru: jet slots (optional)

★★★★✩
★✩✩✩✩

Set-up: quick and easy

BT30 - Inch
d

L

L1

D

Set Screw
Part Number

Standard

1/8”

2.36”

0.63”

0.75”

S6-32X1/4

Standard

3/16”

2.36”

0.87”

0.75”

S8-32X1/4

B3006-0250-2.36

Standard

1/4”

2.36”

1.10”

0.79”

S1/4-28X1/4

B3006-0312-2.36

Standard

5/16”

2.36”

1.26”

0.87”

S5/16-24X1/4

B3006-0375-2.36

Standard

3/8”

2.36”

1.26”

1.00”

S3/8-24X5/16

B3006-0437-2.36

Standard

7/16”

2.36”

1.50”

1.38”

S7/16-20X3/8

B3006-0500-2.36

Standard

1/2”

2.36”

1.50”

1.38”

S7/16-20X3/8

B3006-0625-2.50

Standard

5/8”

2.50”

1.61”

1.65”

S9/16-18X1/2

B3006-0750-3.00

Standard

3/4”

3.00”

1.77”

1.88”

S5/8-18X1/2

B3006-0875-3.54

Standard

7/8”

3.54”

2.09”

2.00”

S5/8-18X1/2 (2)

B3006-1000-3.54

Standard

1”

3.54”

2.36”

2.36”

S3/4-16X11/16 (2)

Set Screw
Part Number

Part Number

Style

B3006-0125-2.36
B3006-0187-2.36

L
L1
d
D

Set Screws are included. Back-up screws not included.

BT30 - Metric
Part Number

Style

d

L

L1

D

B3006-6-2.50

Standard

6mm

2.50”

1.10”

0.79”

S1/4-28X1/4

B3006-8-2.50

Standard

8mm

2.50”

1.26”

0.87”

S5/16-24X1/4

B3006-10-2.50

Standard

10mm

2.50”

1.26”

1.00”

S3/8-24X5/16

B3006-12-2.50

Standard

12mm

2.50”

1.50”

1.38”

S7/16-20X3/8

B3006-14-2.50

Standard

14mm

2.50”

1.61”

1.65”

S9/16-18X1/2

B3006-16-2.50

Standard

16mm

2.50”

1.61”

1.65”

S9/16-18X1/2

B3006-18-3.50

Standard

18mm

3.50”

1.65”

1.89”

S5/8-18X1/2

B3006-20-3.50

Standard

20mm

3.50”

1.65”

1.89”

S5/8-18X1/2

B3006-25-3.50

Standard

25mm

3.50”

2.36”

2.36”

S3/4-16X11/16(2)

Set Screws are included. Back-up screws not included.

L
L1
d
D

Accessories:
Set Screws
Page 28

18

Set Screws for
Aerospace Holders
Page 28

Tool Jaw
Page 212

Pull Stud
Pages 139-140

800-543-6237
www.lyndexnikken.com

End Mill Holders

End Mill Holders

BT End Mill Holders
BT40 - Inch
Part Number

Style

d

L

L1

D

Set Screw
Part Number

B40S6-0125-1.38

Stubby

1/8”

1.38”

0.78”

0.75”

S6-32X1/4

B4006-0125-2.36

Standard

1/8”

2.36”

0.63”

0.75”

S6-32X1/4

B4016-0125-4.00

Standard

1/8”

4.00”

0.63”

0.75”

S6-32X1/4

B40S6-0187-1.38

Stubby

3/16”

1.38”

0.98”

0.75”

S8-32X1/4

B4006-0187-2.50

Standard

3/16”

2.50”

0.86”

0.75”

S8-32X1/4

B4016-0187-4.00

Standard

3/16”

4.00”

0.86”

0.75”

S8-32X1/4

B40S6-0250-1.38

Stubby

1/4”

1.38”

1.18”

0.79”

S1/4-28X1/4

d

B4006-0250-2.50

Standard

1/4”

2.50”

1.10”

0.79”

S1/4-28X1/4

D

B4016-0250-4.00

Standard

1/4”

4.00”

1.10”

0.79”

S1/4-28X1/4

B40S6-0312-1.38

Stubby

5/16”

1.38”

1.38”

0.87”

S5/16-24X1/4

B4006-0312-2.50

Standard

5/16”

2.50”

1.26”

0.87”

S5/16-24X1/4

B4016-0312-4.00

Standard

5/16”

4.00”

1.26”

0.87”

S5/16-24X1/4

B40S6-0375-1.38

Stubby

3/8”

1.38”

1.38”

1.00”

S3/8-24x5/16

B4006-0375-2.50

Standard

3/8”

2.50”

1.26”

1.00”

S3/8-24x5/16

B4016-0375-4.00

Standard

3/8”

4.00”

1.26”

1.00”

S3/8-24x5/16

B4006-0437-2.50

Standard

7/16”

2.50”

1.53”

1.38”

S7/16-20X3/8

B40S6-0500-1.75

Stubby

1/2”

1.75”

1.57”

1.38”

S7/16-20X3/8

B4006-0500-2.50

Standard

1/2”

2.50”

1.50”

1.38”

S7/16-20X3/8

B4016-0500-4.00

Standard

1/2”

4.00”

1.57”

1.38”

S7/16-20X3/8

B40S6-0625-1.75

Stubby

5/8”

1.75”

1.61”

1.65”

S9/16-18X1/2

d

B4006-0625-2.50

Standard

5/8”

2.50”

1.61”

1.65”

S9/16-18X1/2

D

B4016-0625-4.00

Standard

5/8”

4.00”

1.61”

1.65”

S9/16-18X1/2

B40S6-0750-1.75

Stubby

3/4”

1.75”

1.77”

1.89”

S5/8-18X1/2

B4006-0750-2.50

Standard

3/4”

2.50”

1.77”

1.89”

S5/8-18X1/2

B4016-0750-4.00

Standard

3/4”

4.00”

1.77”

1.89”

S5/8-18X1/2

B4006-0875-3.38

Standard

7/8”

3.38”

2.08”

2.00”

S5/8-18X1/2(2)

B4016-0875-6.00

Standard

7/8”

6.00”

2.08”

2.00”

S5/8-18X1/2(2)

B40S6-1000-2.00

Stubby

1”

2.00”

2.28”

2.25”

S3/4-16X11/16

B4006-1000-3.56

Standard

1”

3.56”

2.36”

2.36”

S3/4-16X11/16(2)

B4016-1000-6.00

Standard

1”

6.00”

2.36”

2.36”

S3/4-16X11/16(2)

B40S6-1250-2.00

Stubby

1-1/4”

2.00”

2.16”

2.25”

S3/4-16X11/16

B4006-1250-3.56

Standard

1-1/4”

3.56”

2.56”

2.48”

S3/4-16X11/16(2)

B4016-1250-6.00

Standard

1-1/4”

6.00”

2.56”

2.48”

S3/4-16X11/16(2)

B4006-1500-4.50

Standard

1-1/2”

4.50”

2.83”

2.99”

S3/4-16X11/16(2)

B4016-1500-6.00

Standard

1-1/2”

6.00”

2.83”

2.99”

S3/4-16X11/16(2)

L1

L

Stubby

L
L1

Standard

Set Screws are included. Back-up screws not included.

Accessories:
Set Screws
Page 28

Set Screws for
Aerospace Holders
Page 28

Tool Jaw
Page 212

Pull Stud
Pages 139-140

19

End Mill Holders

800-543-6237
www.lyndexnikken.com

End Mill Holders

BT End Mill Holders
BT40 - Metric
Style

d

L

L1

D

Set Screw
Part Number

B4006-6-2.50

Standard

6mm

2.50”

1.10”

0.79”

S1/4-28X1/4

B4016-6-4.00
B4006-8-2.50

Standard
Standard

6mm
8mm

4.00”
2.50”

1.10”
1.26”

0.79”
0.87”

S1/4-28X1/4
S5/16-24X1/4

B4016-8-4.00
B4006-10-2.50

Standard
Standard

8mm
10mm

4.00”
2.50”

1.26”
1.26”

0.87”
1.00”

S5/16-24X1/4
S3/8-24X5/16

B4016-10-4.00
B4006-12-2.50

Standard
Standard

10mm
12mm

4.00”
2.50”

1.26”
1.50”

1.00”
1.38”

S3/8-24X5/16
S7/16-20X3/8

B4016-12-4.00
B4006-14-2.50

Standard
Standard

12mm
14mm

4.00”
2.50”

1.50”
1.61”

1.38”
1.65”

S7/16-20X3/8
S9/16-18X1/2

B4016-14-4.00
B4006-16-2.50

Standard
Standard

14mm
16mm

4.00”
2.50”

1.61”
1.61”

1.65”
1.65”

S9/16-18X1/2
S9/16-18X1/2

B4016-16-4.00
B4006-18-2.50

Standard
Standard

16mm
18mm

4.00”
2.50”

1.61”
1.77”

1.65”
1.89”

S9/16-18X1/2
S5/8-18X1/2

B4016-18-4.00
B4006-20-2.50

Standard
Standard

18mm
20mm

4.00”
2.50”

1.77”
1.77”

1.89”
1.89”

S5/8-18X1/2
S5/8-18X1/2

B4016-20-4.00
B4006-25-3.56

Standard
Standard

20mm
25mm

4.00”
3.56”

1.77”
2.36”

1.89”
2.36”

S5/8-18X1/2
S3/4-16X11/16(2)

B4016-25-6.00
B4006-32-3.56

Standard
Standard

25mm
32mm

6.00”
3.56”

2.36”
2.56”

2.36”
2.48”

S3/4-16X11/16(2)
S3/4-16X11/16(2)

B4016-32-6.00

Standard

32mm

6.00”

2.56”

2.48”

S3/4-16X11/16(2)

Part Number

L
L1
d
D

Set Screws are included. Back-up screws not included.

Accessories:
Set Screws
Page 28

20

Set Screws for
Aerospace Holders
Page 28

Tool Jaw
Page 212

Pull Stud
Pages 139-140

800-543-6237
www.lyndexnikken.com

End Mill Holders

End Mill Holders

BT End Mill Holders
BT50 - Inch
Part Number

Style

d

L

L1

D

Set Screw
Part Number

B5006-0250-3.00

Standard

1/4”

3.00”

1.10”

0.78”

S1/4-28X1/4

B5016-0250-6.00
B5006-0375-2.75

Standard
Standard

1/4”
3/8”

6.00”
2.75”

1.10”
1.26”

0.78”
1.00”

S1/4-28X1/4
S3/8-24X5/16

B5016-0375-6.00
B5006-0500-3.00

Standard
Standard

3/8”
1/2”

6.00”
3.00”

1.26”
1.50”

1.00”
1.38”

S3/8-24X5/16
S7/16-20X3/8

B5016-0500-6.00
B5006-0625-3.00

Standard
Standard

1/2”
5/8”

6.00”
3.00”

1.50”
1.61”

1.38”
1.65”

S7/16-20X3/8
S9/16-18X1/2

B5016-0625-6.00
B5006-0750-3.00

Standard
Standard

5/8”
3/4”

6.00”
3.00”

1.61”
1.77”

1.65”
1.89”

S9/16-18X1/2
S5/8-18X1/2

B5016-0750-6.00
B5006-0875-4.00

Standard
Standard

3/4”
7/8”

6.00”
4.00”

1.77”
2.08”

1.89”
2.00”

S5/8-18X1/2
S5/8-18X1/2 (2)

B5016-0875-6.00
B5006-1000-4.00

Standard
Standard

7/8”
1”

6.00”
4.00”

2.08”
2.36”

2.00”
2.36”

S5/8-18X1/2 (2)
S3/4-16X11/16 (2)

B5016-1000-6.00
B5006-1250-4.00

Standard
Standard

1”
1-1/4”

6.00”
4.00”

2.36”
2.56”

2.36”
2.48”

S3/4-16X11/16 (2)
S3/4-16X11/16 (2)

B5016-1250-6.00
B5006-1500-4.50

Standard
Standard

1-1/4”
1-1/2”

6.00”
4.50”

2.56”
2.83”

2.48”
2.99”

S3/4-16X11/16 (2)
S3/4-16X11/16 (2)

B5016-1500-7.00
B5006-2000-5.00

Standard
Standard

1-1/2”
2”

7.00”
5.00”

2.83”
3.34”

2.99”
3.74”

S3/4-16X11/16 (2)
S1-14X7/8 (2)

B5016-2000-8.00
B5006-2500-6.00

Standard
Standard

2”
2-1/2”

8.00”
6.00”

3.34”
3.66”

3.74”
4.25”

S1-14X7/8 (2)
S1-14X7/8 (2)

Set Screw
Part Number

L
L1
d
D

Set Screws are included. Back-up screws not included.

BT50 - Metric
Part Number

Style

d

L

L1

D

B5006-6-2.50

Standard

6mm

2.50”

1.10”

0.79”

S1/4-28X1/4

B5006-8-2.50

Standard

8mm

2.50”

1.25”

0.87”

S5/16-24X1/4

B5006-10-2.75

Standard

10mm

2.75”

1.25”

1.00”

S3/8-24X5/16

B5006-12-3.00

Standard

12mm

3.00”

1.50”

1.38”

S7/16-20X3/8

B5006-14-3.00

Standard

14mm

3.00”

1.61”

1.65”

S9/16-18X1/2

B5006-16-3.00

Standard

16mm

3.00”

1.61”

1.65”

S9/16-18X1/2

B5006-18-3.00

Standard

18mm

3.00”

1.77”

1.89”

S5/8-18X1/2

B5006-20-3.00

Standard

20mm

3.00”

1.77”

1.89”

S5/8-18X1/2

B5006-25-4.00

Standard

25mm

4.00”

2.36”

2.36”

S3/4-16X11/16 (2)

B5006-32-4.00

Standard

32mm

4.00”

2.55”

2.48”

S3/4-16X11/16 (2)

B5006-40-4.49

Standard

40mm

4.49”

2.83”

3.07”

S3/4-16X11/16 (2)

B5006-42-4.49

Standard

42mm

4.49”

2.83”

3.07”

S3/4-16X11/16 (2)

B5006-50-5.00

Standard

50mm

5.00”

3.34”

3.74”

S1-14X7/8 (2)

Set Screws are included. Back-up screws not included.

Accessories:
Set Screws
Page 28

Set Screws for
Aerospace Holders
Page 28

Tool Jaw
Page 212

Pull Stud
Pages 139-140

21

End Mill Holders

800-543-6237
www.lyndexnikken.com

End Mill Holders

HSK End Mill Holders
• End mill inner bore T.I.R. < 0.0002
• Through-spindle coolant capability
• AT3 or better taper

TIR: < .0002 run out in ID bore

Milling

Speed: up to 20,000 rpm

Tapping

★★★★✩
★✩✩✩✩

Set-up: quick and easy
Please note that the maximum RPM listed in our catalog may vary depending
on the toolholder shank, weight, balanceability and the G rating.

Coolant-thru: jet slots (optional)

HSK63A
d

L

L1

D

Set Screw
Part Number

HSK63A-0187-3.00

3/16”

3.00”

0.866”

0.748”

S8-32X1/4

HSK63A-0187-5.00
HSK63A-0250-3.00

3/16”
1/4”

5.00”
3.00”

0.866”
1.102”

0.748”
0.787”

S8-32X1/4
S1/4-28X1/4

HSK63A-0250-5.00
HSK63A-0312-3.00

1/4”
5/16”

5.00”
3.00”

1.102”
1.417”

0.787”
0.874”

S1/4-28X1/4
S5/16-24X1/4

HSK63A-0312-5.00
HSK63A-0375-3.50

5/16”
3/8”

5.00”
3.50”

1.417”
1.574”

0.874”
1.00”

S5/16-24X1/4
S3/8-24X5/16

HSK63A-0375-5.00
HSK63A-0437-4.00

3/8”
7/16”

5.00”
4.00”

1.574”
1.771”

1.00”
1.378”

S3/8-24X5/16
S7/16-20X3/8

HSK63A-0437-5.00
HSK63A-0500-4.00

7/16”
1/2”

5.00”
4.00”

1.771”
1.771”

1.378”
1.378”

S7/16-20X3/8
S7/16-20X3/8

HSK63A-0500-5.00
HSK63A-0625-4.00

1/2”
5/8”

5.00”
4.00”

1.771”
1.889”

1.378”
1.654”

S7/16-20X3/8
S9/16-18X1/2

HSK63A-0625-5.00
HSK63A-0750-4.50

5/8”
3/4”

5.00”
4.50”

1.889”
1.968”

1.654”
1.889”

S9/16-18X1/2
S5/8-18X1/2

HSK63A-0750-6.00
HSK63A-1000-4.50

3/4”
1”

6.00”
4.50”

1.968”
2.755”

1.889”
2.363”

S5/8-18X1/2
S3/4-16X11/16 (2)

HSK63A-1000-6.00
HSK63A-1250-4.50

1”
1-1/4”

6.00”
4.50”

2.755”
2.952”

2.363”
2.88”

S3/4-16X11/16 (2)
S3/4-16X11/16 (2)

HSK63A-1250-6.00

1-1/4”

6.00”

2.952”

2.88”

S3/4-16X11/16 (2)

Part Number

L
L1
d
D

Set Screws are included. Back-up screws not included.
Coolant tube and coolant tube wrench are sold separately.

HSK40A
d

L

L1

D

Set Screw
Part Number

HSK40A-0125-75

1/8”

2.95”

0.63”

0.75”

S6-32X1/4

HSK40A-0187-75
HSK40A-0250-75

3/16”
1/4”

2.95”
2.95”

0.87”
1.42”

0.75”
0.79”

S8-32X1/4
S1/4-28x1/4

HSK40A-0312-75
HSK40A-0375-75

5/16”
3/8”

2.95”
2.95”

1.42”
1.57”

0.87”
1.00”

S5/16-24X1/4
S3/8-24X5/16

HSK40A-0437-75
HSK40A-0500-75

7/16”
1/2”

2.95”
2.95”

1.78”
1.78”

1.38”
1.38”

S7/16-20X3/8
S7/16-20X3/8

HSK40A-0625-75
HSK40A-0750-75

5/8”
3/4”

2.95”
2.95”

1.89”
1.97”

1.65”
1.89”

S9/16-18X1/2
S5/8-18X1/2

Part Number

Accessories:
Set Screws
Page 28

22

Set Screws for
Aerospace Holders
Page 28

HSK Coolant Tube
Page 28

HSK Coolant
Tube Wrench
Page 28

800-543-6237
www.lyndexnikken.com

End Mill Holders

End Mill Holders

HSK End Mill Holders
HSK100A
d

L

L1

D

Set Screw
Part Number

HSK100A-0187-4.00

3/16”

4.00”

0.867”

0.748”

S8-32X1/4

HSK100A-0187-6.00
HSK100A-0250-4.00

3/16”
1/4”

6.00”
4.00”

0.867”
1.102”

0.748”
0.787”

S8-32X1/4
S1/4-28X1/4

HSK100A-0250-6.00
HSK100A-0312-4.00

1/4”
5/16”

6.00”
4.00”

1.102”
1.220”

0.787”
0.866”

S1/4-28X1/4
S5/16-24X1/4

HSK100A-0312-6.00
HSK100A-0375-4.00

5/16”
3/8”

6.00”
4.00”

1.220”
1.260”

0.866”
1.00”

S5/16-24X1/4
S3/8-24X5/16

HSK100A-0375-6.00
HSK100A-0437-4.00

3/8”
7/16”

6.00”
4.00”

1.260”
1.496”

1.00”
1.378”

S3/8-24X5/16
S7/16-20X3/8

HSK100A-0437-6.00
HSK100A-0500-4.00

7/16”
1/2”

6.00”
4.00”

1.496”
1.575”

1.378”
1.378”

S7/16-20X3/8
S7/16-20X3/8

HSK100A-0500-6.00
HSK100A-0625-4.00

1/2”
5/8”

6.00”
4.00”

1.575”
1.693”

1.378”
1.654”

S7/16-20X3/8
S9/16-18X1/2

HSK100A-0625-6.00
HSK100A-0750-4.00

5/8”
3/4”

6.00”
4.00”

1.693”
1.969”

1.654”
1.890”

S9/16-18X1/2
S5/8-18X1/2

HSK100A-0750-6.00
HSK100A-1000-4.00

3/4”
1”

6.00”
4.00”

1.969”
2.559”

1.890”
2.362”

S5/8-18X1/2
S3/4-16X11/16 (2)

HSK100A-1000-6.00
HSK100A-1250-4.00

1”
1-1/4”

6.00”
4.00”

2.559”
2.559”

2.362”
2.480”

S3/4-16X11/16 (2)
S3/4-16X11/16 (2)

HSK100A-1250-6.00

1-1/4”

6.00”

2.559”

2.480”

S3/4-16X11/16 (2)

Part Number

L
L1
d
D

Set Screws are included. Back-up screws not included.
Coolant tube and coolant tube wrench are sold separately.

Accessories:
Set Screws
Page 28

Set Screws for
Aerospace Holders
Page 28

HSK Coolant Tube
Page 28

HSK Coolant
Tube Wrench
Page 28
23

End Mill Holders

800-543-6237
www.lyndexnikken.com

End Mill Holders

NMTB End Mill Holders
• End mill inner bore T.I.R. < 0.0002
• Through-spindle coolant capability
• AT3 or better taper

TIR: < .0002 run out in ID bore

Milling

Speed: up to 20,000 rpm

Tapping

★★★★✩
★✩✩✩✩

Set-up: quick and easy
Please note that the maximum RPM listed in our catalog may vary depending
on the toolholder shank, weight, balanceability and the G rating.

Coolant-thru: jet slots (optional)

NMTB30
d

L

L1

D

Set Screw
Part Number

N3006-0125-1.75

1/8”

1.75”

0.63”

0.75”

S6-32X1/4

N3006-0187-1.75

3/16”

1.75”

0.87”

0.75”

S8-32X1/4

N3006-0250-1.75

1/4”

1.75”

1.10”

0.79”

S1/4-28X1/4

N3006-0312-1.75

5/16”

1.75”

1.26”

0.87”

S5/16-24X1/4

N3006-0375-1.75

3/8”

1.75”

1.26”

1.00”

S3/8-24X5/16

N3006-0500-1.75

1/2”

1.75”

1.57”

1.38”

S7/16-20X3/8

N3006-0625-1.75

5/8”

1.75”

1.69”

1.43”

S9/16-18X1/2

N3006-0750-2.25

3/4”

2.25”

1.85”

1.89”

S5/8-18X1/2

N3006-0875-2.50

7/8”

2.50”

1.96”

2.01”

S5/8-18X1/2

N3006-1000-2.69

1”

2.69”

2.24”

2.36”

S3/4-16X11/16

N3006-1250-3.62

1-1/4”

3.62”

2.24”

2.48”

S3/4-16X11/16 (2)

d

L

L1

D

Set Screw
Part Number

N4006-0125-2.31

1/8”

2.31”

0.63”

0.75”

S6-32X1/4

N4006-0187-2.31

3/16”

2.31”

0.87”

0.75”

S8-32X1/4

N4006-0250-2.31

1/4”

2.31”

1.10”

0.79”

S1/4-28X1/4

N4006-0312-2.31

5/16”

2.31”

1.26”

0.87”

S5/16-24X1/4

N4006-0375-2.31

3/8”

2.31”

1.26”

1.00”

S3/8-24X5/16

N4006-0437-2.31

7/16”

2.31”

1.50”

1.38”

S7/16-20X3/8

N4006-0500-2.31

1/2”

2.31”

1.50”

1.38”

S7/16-20X3/8

N4006-0625-2.31

5/8”

2.31”

1.61”

1.65”

S9/16-18X1/2

N4006-0750-2.31

3/4”

2.31”

1.77”

1.89”

S5/8-18X1/2

N4006-0875-2.94

7/8”

2.94”

2.09”

2.01”

S5/8-18X1/2 (2)

N4006-1000-3.37

1”

3.37”

2.36”

2.36”

S3/4-16X11/16 (2)

N4006-1250-3.69

1-1/4”

3.69”

2.56”

2.48”

S3/4-16X11/16 (2)

N4006-1500-3.95

1-1/2”

3.95”

2.56”

2.99”

S3/4-16X11/16 (2)

Part Number

NMTB40
Part Number

NMTB shanks are suitable for use with Erickson QC spindles.
Set Screws are included. Back-up screws not included.

Accessories:
Set Screws
Page 28

24

Set Screws for
Aerospace Holders
Page 28

L

L1
d
D

800-543-6237
www.lyndexnikken.com

End Mill Holders

End Mill Holders

NMTB End Mill Holders
NMTB50
d

L

L1

D

Set Screw
Part Number

N5006-0250-2.75
N5006-0375-2.75

1/4”
3/8”

2.75”
2.75”

1.10”
1.26”

0.79”
1.00”

S1/4-28X1/4
S3/8-24X5/16

N5016-0375-4.50
N5006-0500-2.75

3/8”
1/2”

4.50”
2.75”

1.26”
1.50”

1.00”
1.38”

S3/8-24X5/16
S7/16-20X3/8

N5016-0500-4.50
N5006-0625-2.75

1/2”
5/8”

4.50”
2.75”

1.50”
1.61”

1.38”
1.65”

S7/16-20X3/8
S9/16-18X1/2

N5016-0625-4.50
N5006-0750-2.88

5/8”
3/4”

4.50”
2.88”

1.61”
1.77”

1.65”
1.89”

S9/16-18X1/2
S5/8-18X1/2

N5016-0750-4.50
N5006-0875-2.88

3/4”
7/8”

4.50”
2.88”

1.77”
2.09”

1.89”
2.01”

S5/8-18X1/2
S5/8-18X1/2 (2)

N5016-0875-4.50
N5006-1000-3.50

7/8”
1”

4.50”
3.50”

2.09”
2.36”

2.01”
2.36”

S5/8-18X1/2 (2)
S3/4-16X11/16 (2)

N5016-1000-5.50
N5006-1250-3.50

1”
1-1/4”

5.50”
3.50”

2.36”
2.56”

2.36”
2.48”

S3/4-16X11/16 (2)
S3/4-16X11/16 (2)

N5016-1250-5.50
N5006-1500-4.00

1-1/4”
1-1/2”

5.50”
4.00”

2.56”
2.83”

2.48”
2.99”

S3/4-16X11/16 (2)
S3/4-16X11/16 (2)

N5016-1500-6.00
N5006-2000-4.69

1-1/2”
2”

6.00”
4.69”

2.83”
3.34”

2.99”
3.74”

S3/4-16X11/16 (2)
S1-14X7/8 (2)

Part Number

L

L1
d
D

NMTB shanks are suitable for use with Erickson QC spindles.
Set Screws are included. Back-up screws not included.

Accessories:
Set Screws
Page 28

Set Screws for
Aerospace Holders
Page 28

25

End Mill Holders

800-543-6237
www.lyndexnikken.com

End Mill Holders

R8 and Straight Shank End Mill Holders
• End mill inner bore T.I.R. < 0.0002
• Through-spindle coolant capability
• AT3 or better taper

TIR: < .0002 run out in ID bore

Milling

Speed: up to 20,000 rpm

Tapping

★★★★✩
★✩✩✩✩

Set-up: quick and easy
Please note that the maximum RPM listed in our catalog may vary depending
on the toolholder shank, weight, balanceability and the G rating.

Coolant-thru: jet slots (optional)

R8
d

L

L1

D

Set Screw
Part Number

830-008-1.33

1/8”

1.33”

0.63”

0.75”

S6-32X1/4

830-012-1.33

3/16”

1.33”

0.87”

0.75”

S8-32X1/4

830-016-1.33

1/4”

1.33”

1.10”

0.79”

S1/4-28X1/4

830-020-1.75

5/16”

1.75”

1.26”

0.87”

S5/16-24X1/4

830-024-1.33

3/8”

1.33”

1.26”

1.00”

S3/8-24X5/16

830-028-1.33

7/16”

1.33”

1.50”

1.38”

S7/16-20X3/8

830-032-1.33

1/2”

1.33”

1.50”

1.38”

S7/16-20X3/8

830-040-1.50

5/8”

1.50”

1.61”

1.65”

S9/16-18X1/2

d

830-048-2.37

3/4”

2.37”

1.77”

1.89”

S5/8-18X1/2

830-056-2.75

7/8”

2.75”

2.36”

2.01”

S5/8-18X1/2 (2)

D

830-064-3.25

1”

3.25”

2.76”

2.36”

S3/4-16X11/16 (2)

830-080-3.25

1-1/4”

3.25”

2.56”

2.48”

S3/4-16X11/16 (2)

830-096-3.75

1-1/2”

3.75”

2.83”

2.99”

S3/4-16X11/16 (2)

Part Number

L1

L

Set Screws are included. Back-up screws not included.

Straight Shank
d

L

L1

D

D1

Set Screw
Part Number

S7506-0125-6.00

1/8”

6.00”

0.63”

.750”

0.50”

S6-32X1/4

S7506-0187-6.00

3/16”

6.00”

0.86”

.750”

0.56”

S8-32X1/4

S7506-0250-6.00

1/4”

6.00”

1.10”

.750”

0.75”

S1/4-28X1/4

S7506-0312-6.00

5/16”

6.00”

1.26”

.750”

0.75”

S5/16-24X1/4

S1006-0375-6.00

3/8”

6.00”

1.26”

1.00”

1.00”

S3/8-24X5/16 (2)

S1006-0500-6.00

1/2”

6.00”

1.49”

1.00”

1.00”

S1/4-28x1/4 (2)

Part Number

D

L
L1

Set Screws are included. Back-up screws not included.

d
D1

Accessories:
Set Screws
Page 28

26

Set Screws for
Aerospace Holders
Page 28

R8 Collet
Page 128

800-543-6237
www.lyndexnikken.com

End Mill Holders

End Mill Holders

Morse Taper End Mill Holders
• End mill inner bore T.I.R. < 0.0002
• AT3 or better taper
• Tang adapter is removable for draw bar use on MT#2 and #4
holders

TIR: < .0001 run out in ID bore

Milling

Speed: up to 20,000 rpm

Tapping

Please note that the maximum RPM listed in our catalog may vary depending
on the toolholder shank, weight, balanceability and the G rating.

Coolant-thru: jet slots (optional)

★★★★✩
★✩✩✩✩

Set-up: quick and easy

Morse
Part Number

Taper

d

L

L1

D

Set Screw
Part Number

M0206-0125-1.50
M0206-0187-1.50
M0206-0250-1.50

MT#2
MT#2
MT#2

1/8”
3/16”
1/4”

1.50”
1.50”
1.50”

0.67”
0.87”
1.07”

0.75”
0.75”
0.79”

S6-32X1/4
S8-32X1/4
S1/4-28X1/4

M0306-0250-1.50
M0206-0312-1.50

MT#3
MT#2

1/4”
5/16”

1.50”
1.50”

1.07”
1.26”

0.79”
0.87”

S1/4-28X1/4
S5/16-24X5/16

M0306-0312-1.50
M0206-0375-1.63

MT#3
MT#2

5/16”
3/8”

1.50”
1.63”

1.26”
1.26”

0.87”
1.00”

S5/16-24X5/16
S3/8-24X5/16

M0306-0375-1.88

MT#3

3/8”

1.88”

1.26”

1.00”

S3/8-24X5/16

M0406-0375-2.00
M0206-0500-1.81

MT#4
MT#2

3/8”
1/2”

2.00”
1.81”

1.35”
1.53”

1.00”
1.26”

S3/8-24X5/16
S7/16-20X3/8

M0306-0500-1.94

MT#3

1/2”

1.94”

1.50”

1.38”

S7/16-20X3/8

M0406-0500-2.31
M0406-0625-2.50
M0406-0750-2.75

MT#4
MT#4
MT#4

1/2”
5/8”
3/4”

2.31”
2.50”
2.75”

1.46”
1.61”
1.77”

1.38”
1.65”
1.89”

S7/16-20X3/8
S9/16-18X1/2
S5/8-18X1/2

L

L1
d
D

Set Screws are included. Back-up screws not included.

High-Speed Balanceable End Mill Holders
Balanceable End Mill Holders are available in CAT and BT taper styles.
Part numbers are identical to standard End Mill Holders part numbers
except that there is a “B” at the end. (Ex: C4006-0125B)
• 30 and 40 taper toolholders are prebalanced to G2.5 or better at 24,000 RPM
• 50 taper toolholders are prebalanced to G2.5 or better at 15,000 RPM
• Lyndex-Nikken uses a Patented Balancing Method which allows greater

CAT40 HSBalance™ End Mill Holder

compensation necessary for extremely high RPM applications.
• HSBalance™ toolholders come with a printout of actual balance condition
• HSBalance™ toolholders need to be used with balance-qualified pull studs
• A balancing machine is required to balance or re-balance toolholders

CAT40 HSBalance™ End Mill Holder DIN

Accessories:
Set Screws
Page 28

Set Screws for
Aerospace Holders
Page 28

27

End Mill Holders

800-543-6237
www.lyndexnikken.com

End Mill Holders

Accessories
Replacement Set Screws for End Mill Holders
Part Number

Size of Holder Internal Diameter

S6-32X1/4

1/8”

S8-32X1/4

3/16”

S1-14x7/8

2”, 2-1/2”

S1/4-28x1/4

1/4”, 6mm

S5/16-24X1/4

5/16”, 8mm

S3/8-24X5/16

3/8”, 7/16”,10mm

S7/16-20X3/8

1/2”, 12mm

S9/16-18X1/2

5/8”, 14-16mm

S5/8-18X1/2

3/4”, 7/8”, 18-20mm

S3/4-16X11/16

1”, 1-1/4”, 1-1/2”, 25-42mm

Replacement Set Screws for Aerospace End Mill Holders
Part Number

Size of Holder Internal Diameter

S3/4-16x7/16
S1/2-20UNF
S3/8-24UNF

1”, 1-1/4”, 1-1/2”, 2”, 2-1/2”
5/8”, 3/4”, 7/8”
3/8”, 1/2”

Coolant Tube for HSK holders
Part Number
HSK63-TUBE

Description
Coolant tube for HSK63 holders

HSK40-TUBE

Coolant tube for HSK40 holders

HSK100-TUBE

Coolant tube for HSK100 holders

Coolant Tube Wrench for HSK holders
Part Number

Description

HSK63-WRENCH

Wrench for HSK63 Coolant Tube

HSK40-WRENCH

Wrench for HSK40 Coolant Tube

HSK100-WRENCH

Wrench for HSK100 Coolant Tube

Coolant tube wrenches are needed to remove or install coolant tubes in HSK toolholders

28



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