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Speed & Feed Recommendations
Series Hardness Vc 1/8 3/16 1/4 Diameter (D1) 1/2 3/4 1
606 BRINELL (SFM) 3820 2547 1910 (inch) 955
Fractional 0.0011 0.0016 0.0021 3/8 0.0042
200 125 4.2 4.1 4.0 1273 4.0
(100-150) RPM 1834 1222 917 0.0032 458 637 478
Fr 0.0010 0.0014 0.0019 4.1 0.0038
60 1.8 1.7 1.7 611 1.7 0.0063 0.0084
(48-72) Feed (IPM) 1375 917 688 0.0029 344
RPM 0.0006 0.0009 0.0012 1.8 0.0024 4.0 4.0
45 Fr 0.8 0.8 0.8 458 0.8
CARBON STEELS (36-54) 2903 1935 1452 0.0018 726 306 229
Feed (IPM) 0.0009 0.0014 0.0018 0.8 0.0036
P 1018, 1040, 1080, 1090, > 200 95 RPM 2.6 2.7 2.6 968 2.6 0.0057 0.0076
10L50, 1140, 1212, 12L15, 300 (76-114) Fz 1834 1222 917 0.0027 458
1525, 1536 0.0009 0.0014 0.0018 2.6 0.0036
60 Feed (IPM) 1.7 1.7 1.7 611 1.7 1.7 1.7
(48-72) RPM 1070 713 535 0.0027 267
Fz 0.0006 0.0008 0.0011 1.7 0.0022 229 172
35 0.6 0.6 0.6 357 0.6
> 300 (28-42) Feed (IPM) 1070 713 535 0.0017 267 0.0036 0.0048
420 RPM 0.0006 0.0008 0.0011 0.6 0.0022
35 Fr 0.6 0.6 0.6 357 0.6
(28-42) 764 509 382 0.0017 191 0.8 0.8
Feed (IPM) 0.0003 0.0005 0.0006 0.6 0.0012
25 RPM 0.2 0.3 0.2 255 0.2 484 363
(20-30) Fr 611 407 306 0.0009 153
275 0.0003 0.0005 0.0006 0.2 0.0012 0.0054 0.0072
20 Feed (IPM) 0.2 0.2 0.2 204 0.2
(16-24) RPM 3209 2139 1604 0.0009 802 2.6 2.6
Fr 0.0012 0.0018 0.0024 0.2 0.0048
ALLOY STEELS 105 3.9 3.9 3.9 1070 3.9 306 229
P 4140, 4150, 4320, 5120, (84-126) Feed (IPM) 2292 1528 1146 0.0036 573
> 275 RPM 0.0012 0.0018 0.0024 3.9 0.0048 0.0054 0.0072
5150, 8630, 86L20, 50100 375 75 Fr 2.8 2.8 2.8 764 2.8
(60-90) 1620 1080 810 0.0036 405
Feed (IPM) 0.0006 0.0009 0.0012 2.8 0.0024 1.7 1.7
53 RPM 1.0 1.0 1.0 540 1.0
(42-64) Fr 1406 937 703 0.0018 351 178 134
0.0005 0.0007 0.0009 1.0 0.0018
> 375 46 Feed (IPM) 0.7 0.7 0.6 469 0.6 0.0033 0.0044
450 (37-55) RPM 0.0014
Fr 0.7
0.6 0.6
Feed (IPM)
RPM 178 134
Fr
250 0.0033 0.0044
> 250 Feed (IPM)
330 RPM 0.6 0.6
> 330 Fr
TOOL STEELS 450 127 96
P A2, D2, H13, L2, M2, Feed (IPM)
RPM 0.0018 0.0024
P20, S7, T15, W2 Fr
0.2 0.2
Feed (IPM)
102 76
0.0018 0.0024
0.2 0.2
535 401
200 0.0072 0.0096
> 200
K Cast IronS 330 3.9 3.9
Gray, Malleable, Ductile
382 287
0.0072 0.0096
2.8 2.8
270 202
250 0.0036 0.0048
> 250
STAINLESS STEELS 330 1.0 1.0
M (Free MachiNIng)
234 176
303, 416, 420F, 430F 440F
0.0027 0.0036
0.6 0.6
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DRILLS DRILLS 233
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