Melin Catalog 2005 Speed And Feed Countersink Data

Speed_and_Feed_-_Countersink_Data Speed_and_Feed_-_Countersink_Data Milling

User Manual: Speed-and-Feed-Countersink-Data Speeds and Feeds

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Speed Data - Applications in Various Materials
HSS
SFM
150-250
75-125
75-125
80-90
125-250
30-50
100-250
70-100
40-50
30-40
25-35
30-80
15-50
50-60

Material
Aluminum Alloys
Brass ( Bronze)
Cast Iron
Malleable Iron
Magnesium
Inconel/Monel
Plastic
Mild Steel
Steel - Annealed
Steel - Rc 18-24
Steel - Rc 25-37
Stainless Steel - Free Machining
Stainless Steel - Other
Titanium

COUNTERSINK TYPE
M42 8% COBALT WITH TiN
SFM
180-300
95-150
95-150
100-115
150-300
40-65
125-300
85-125
50-65
40-50
30-45
40-100
20-65
60-75

CARBIDE
SFM
300-500
150-250
125-225
90-150
250-400
50-75
250-400
80-170
50-80
40-60
35-55
80-125
50-75
60-90

TECHNICAL DATA

COUNTERSINKS

Note: All speeds are suggested starting points. You may have to change either by increasing or decreasing speed depending on machine condition, finish required, and/or if coolant is
used.
Feed on single flute countersinks should not exceed .005” per revolution on large diameters.
Multiple flute countersinks are designed for increased feed rates. A controlled feed rate will
result in better surface finish.
All Melin countersinks are manufactured on CNC grinders to insure consistant and accurate
flute spacing. Carbide countersinks should be used in rigid tool holders to maximize tool life.

COUNTERSINKS

Nose Diameter for Pre-setting CNC Precision Countersinks
NC POINT DIA.
SIZE

60°

82°

90°

100°

110°

120°

0.188
0.250
0.313
0.375
0.438
0.500
0.625
0.750
0.875
1.000

0.058
0.078
0.080
0.125
0.140
0.156
0.203
0.250
0.281
0.328

0.032
0.046
0.047
0.078
0.096
0.109
0.125
0.156
0.172
0.203

0.032
0.046
0.047
0.078
0.096
0.109
0.125
0.156
0.172
0.203

0.032
0.046
0.047
0.078
0.096
0.109
0.125
0.156
0.172
0.203

0.032
0.046
0.047
0.062
0.070
0.078
0.109
0.125
0.140
0.171

0.032
0.046
0.047
0.062
0.070
0.078
0.109
0.125
0.140
0.171

Phone: (800) 521-1078 | (216) 362-4200

Fax: (800) 521-1558 | (216) 362-4230

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