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Speed & Feed Recommendations
Series Hardness Vc 1/8 3/16 1/4 Diameter (D1) 1/2 3/4 1
601 BRINELL (SFM) 3820 2547 1910 (inch) 955 637 478
Fractional 0.0005 0.0008 0.0011 3/8 0.0021
200 125 1.9 2.0 2.1 1273 2.0
(100-150) RPM 1834 1222 917 0.0016 458 0.0032 0.0042
Fr 0.0005 0.0007 0.0010 2.0 0.0019
60 0.9 0.9 0.9 611 0.9 2.0 2.0
(48-72) Feed (IPM) 1375 917 688 0.0014 344
CARBON STEELS RPM 0.0003 0.0005 0.0006 0.9 0.0012 306 229
45 Fr 0.4 0.5 0.4 458 0.4
P 1018, 1040, 1080, 1090, > 200 (36-54) 2903 1935 1452 0.0009 726 0.0029 0.0038
10L50, 1140, 1212, 12L15, 300 Feed (IPM) 0.0005 0.0007 0.0009 0.4 0.0018
1525, 1536 95 RPM 1.5 1.4 1.3 968 1.3
(76-114) Fz 1834 1222 917 0.0014 458 0.9 0.9
0.0005 0.0007 0.0009 1.4 0.0018
60 Feed (IPM) 0.9 0.9 0.8 611 0.8 229 172
(48-72) RPM 1070 713 535 0.0014 267
> 300 Fz 0.0003 0.0004 0.0006 0.9 0.0011 0.0018 0.0024
420 35 0.3 0.3 0.3 357 0.3
(28-42) Feed (IPM) 1070 713 535 0.0008 267
RPM 0.0003 0.0004 0.0006 0.3 0.0011 0.4 0.4
35 Fr 0.3 0.3 0.3 357 0.3
(28-42) 764 509 382 0.0008 191 484 363
Feed (IPM) 0.0002 0.0002 0.0003 0.3 0.0006
275 25 RPM 0.2 0.1 0.1 255 0.1 0.0027 0.0036
(20-30) Fr 611 407 306 0.0005 153
0.0002 0.0002 0.0003 0.1 0.0006 1.3 1.3
20 Feed (IPM) 0.1 0.1 0.1 204 0.1
ALLOY STEELS (16-24) RPM 3209 2139 1604 0.0005 802 306 229
P 4140, 4150, 4320, 5120, Fr 0.0006 0.0009 0.0012 0.1 0.0024
> 275 105 1.9 1.9 1.9 1070 1.9 0.0027 0.0036
5150, 8630, 86L20, 50100 375 (84-126) Feed (IPM) 2292 1528 1146 0.0018 573
RPM 0.0006 0.0009 0.0012 1.9 0.0024
75 Fr 1.4 1.4 1.4 764 1.4 0.8 0.8
(60-90) 1620 1080 810 0.0018 405
Feed (IPM) 0.0003 0.0005 0.0006 1.4 0.0012 178 134
53 RPM 0.5 0.5 0.5 540 0.5
> 375 (42-64) Fr 1406 937 703 0.0009 351 0.0017 0.0022
450 0.0002 0.0003 0.0005 0.5 0.0009
46 Feed (IPM) 0.3 0.3 0.4 469 0.3
(37-55) RPM 0.0007 0.3 0.3
Fr 0.3
178 134
Feed (IPM)
250 RPM 0.0017 0.0022
> 250 Fr
330 0.3 0.3
> 330 Feed (IPM)
TOOL STEELS 450 RPM 127 96
P A2, D2, H13, L2, M2, Fr
0.0009 0.0012
P20, S7, T15, W2 Feed (IPM)
RPM 0.1 0.1
Fr
102 76
Feed (IPM)
0.0009 0.0012
0.1 0.1
535 401
200 0.0036 0.0048
> 200
K Cast IronS 330 1.9 1.9
Gray, Malleable, Ductile
382 287
0.0036 0.0048
1.4 1.4
270 202
< 250 0.018 0.0024
> 250
STAINLESS STEELS 330 0.5 0.5
M (Free MachiNIng)
234 176
303, 416, 420F, 430F 440F
0.0014 0.0018
0.3 0.3
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DRILLS DRILLS 229
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