Speeds and Feeds for Cut Knurling

Material
Knurl
Diameter
(mm)
Workpiece Diameter
2-12 mm
Workpiece Diameter
12-40 mm
Workpiece Diameter
40-250 mm
speed
m/min
ft/min
feed
mm/rev
in/rev
speed
m/min
ft/min
feed
mm/rev
in/rev
speed
m/min
ft/min
feed
mm/rev
in/rev
Mild Steel
up to 60 kg
8.9
14.5 / 15
21.5 / 25
35
115
45
148
60
197
0.05-0.08
.002-.003
0.07-0.09 
.003-.004
0.07-0.15 
.003-.006
-
-
40
131
60
97
-
-
0.07-0.09
.003-.004
0.07-0.09
.003-.006
-
-
-
-
50
164
-
-
-
-
0.07-0.15
.003-.006
Tool Steel
up to 90 kg
8.9
14.5 / 15
21.5 / 25
25
82
35
115
50
164
0.04-0.07
.002-.003
0.06-0.08
.002-.003
0.06-0.12
.002-.005
-
-
30
98
45
148
-
-
0.06-0.08
.002-.003
0.06-0.12
.002-.005
-
-
-
-
40
131
-
-
-
-
0.06-0.12
.002-.005
Stainless Steel
8.9
14.5 / 15
21.5 / 25
22
72
30
98
40
131
0.04-0.06
.002-.002
0.06-0.08
.002-.003
0.06-0.12
.002-.005
-
-
28
92
35
115
-
-
0.06-0.08
.002-.003
0.06-0.12
.002-.005
-
-
-
-
32
105
-
-
-
-
0.06-0.12
.002-.005
Brass 58
8.9
14.5 / 15
21.5 / 25
60
197
70
230
90
295
0.06-0.10
.002-.004
0.08-0.12
.003-.008
0.08-0.20
.003-.008
-
-
60
197
90
295
-
-
0.08-0.12
.003-.005
0.08-0.20
.003-.008
-
-
-
-
80
262
-
-
-
-
0.08-0.20
.003-.008
Brass 60
8.9
14.5 / 15
21.5 / 25
50
164
60
197
90
295
0.05-0.09
.002-.004
0.06-0.10
.002-.004
0.07-0.15
.003-.006
-
-
60
197
90
295
-
-
0.06-0.10
.002-.004
0.07-0.15
.003-.006
-
-
-
-
80
262
-
-
-
-
0.07-0.15
.003-.006
Bronze
8.9
14.5 / 15
21.5 / 25
35
115
45
148
60
197
0.05-0.08
.002-.003
0.07-0.09
.003-.004
0.07-0.14
.003-.006
-
-
40
131
60
197
-
-
0.07-0.09
.003-.004
0.07-0.14
.003-.006
-
-
-
-
55
180
-
-
-
-
0.07-0.14
.003-.006
Aluminum
8.9
14.5 / 15
21.5 / 25
60
197
70
230
90
295
0.06-0.13
.002-.005
0.08-0.18
.003-.007
0.10-0.25
.004-.010
-
-
70
230
80
262
-
-
0.08-0.18
.003-.007
0.10-0.25
.004-.010
-
-
-
-
70
230
-
-
-
-
0.10-0.25
.004-.010
Grey Iron
8.9
14.5 / 15
21.5 / 25
22
72
30
98
40
131
0.04-0.06
.002-.002
0.06-0.08
.002-.003
0.06-0.12
.002-.005
-
-
28
92
35
115
-
-
0.06-0.08
.002-.003
0.06-0.12
.002-.005
-
-
-
-
32
105
-
-
-
-
0.06-0.12
.002-.005
Cast Iron
8.9
14.5 / 15
21.5 / 25
25
82
35
115
50
164
0.04-0.07 
.002-.003
0.06-0.08
.002-.003
0.06-0.12
.002-.005
-
-
30
98
45
148
-
-
0.06-0.12
.002-.003
0.06-0.12
.002-.005
-
-
-
-
40
131
-
-
-
-
0.06-0.12
.002-.005
Speeds and Feeds for Cut Knurling
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