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Speed & Feed Recommendations
Ap
Series Hardness Ae Ae Vc Diameter (D1)
1, 3, 5, 14, 15, 16, BRINELL (SFM) (inch)
17, 23, 24, 59 Flutes Ae x D1 Ap x D1
Fractional 460 1/64 1/32 1/16 1/8 1/4 3/8 1/2 3/4 1
RPM 112461 56230 28115 14058 7029 4686 3514 2343 1757
Profile Fz 0.00003 0.00006 0.00013 0.0003 0.0008 0.0015 0.0020 0.0024 0.0028
C ARBON STEELS 2 0.50 1.5 (368-552) Feed 6.7 6.7 7.3 8.4 11.2 14.1 14.1 11.2 9.8
3 0.25 1.5 (IPM) 10.1 10.1 11.0 12.7 16.9 21.1 21.1 16.9 14.8
4 0.25 13.5 13.5 14.6 16.9 22.5 28.1 28.1 22.5 19.7
P 1018, 1040, 1080, 1090, 175 1.5
10L50, 1140, 1212, 2 1
12L15, 1525, 1536 3 1 335 RPM 81901 40950 20475 10238 5119 3413 2559 1706 1280
Slot Fz 0.00003 0.00006 0.00013 0.0003 0.0008 0.0015 0.0020 0.0024 0.0028
1 (268-402) Feed 4.9 4.9 5.3 6.1 8.2 10.2 10.2 8.2 7.2
0.5 (IPM) 7.4 7.4 8.0 9.2 12.3 15.4 15.4 12.3 10.7
9.8 9.8 10.6 12.3 16.4 20.5 20.5 16.4 14.3
4 1 0.4
335 RPM 81901 40950 20475 10238 5119 3413 2559 1706 1280
Profile Fz 0.00002 0.00005 0.00009 0.0002 0.0006 0.0011 0.0015 0.0018 0.0021
Slot
ALLOY STEELS 2 0.50 1.5 (268-402) Feed 3.3 4.1 3.7 4.1 6.1 7.5 7.7 6.1 5.4
3 0.25 1.5 (IPM) 4.9 6.1 5.5 6.1 9.2 11.3 11.5 9.2 8.1
4 0.25 6.6 8.2 7.4 8.2 12.3 15.0 15.4 12.3 10.7
P 4140, 4150, 4320, 5120, 275 1.5
5150, 8630, 86L20, 2 1
50100 3 1 245 RPM 59898 29949 14974 7487 3744 2496 1872 1248 936
4 1
Fz 0.00002 0.00005 0.00009 0.0002 0.0006 0.0011 0.0015 0.0018 0.0021
1 (196-294) Feed 2.4 3.0 2.7 3.0 4.5 5.5 5.6 4.5 3.9
0.5 (IPM) 3.6 4.5 4.0 4.5 6.7 8.2 8.4 6.7 5.9
4.8 6.0 5.4 6.0 9.0 11.0 11.2 9.0 7.9
0.4
315 RPM 77011 38506 19253 9626 4813 3209 2407 1604 1203
Profile Fz 0.00002 0.00005 0.00009 0.0002 0.0006 0.0011 0.0015 0.0018 0.0021
Slot
2 0.50 1.5 (252-378) Feed 3.1 3.9 3.5 3.9 5.8 7.1 7.2 5.8 5.1
3 0.25 1.5 (IPM) 4.6 5.8 5.2 5.8 8.7 10.6 10.8 8.7 7.6
TOOL STEELS 4 0.25 6.2 7.7 6.9 7.7 11.6 14.1 14.4 11.6 10.1
P A2, D2, H13, L2, M2, 250 1.5
2 1
P20, S7, T15, W2 3 1 230 RPM 56230 28115 14058 7029 3514 2343 1757 1171 879
4 1
Fz 0.00002 0.00005 0.00009 0.0002 0.0006 0.0011 0.0015 0.0018 0.0021
1 (184-276) Feed 2.2 2.8 2.5 2.8 4.2 5.2 5.3 4.2 3.7
0.5 (IPM) 3.4 4.2 3.8 4.2 6.3 7.7 7.9 6.3 5.5
4.5 5.6 5.1 5.6 8.4 10.3 10.5 8.4 7.4
0.4
335 RPM 81901 40950 20475 10238 5119 3413 2559 1706 1280
Profile Fz 0.00003 0.00006 0.00013 0.0003 0.0008 0.0015 0.0020 0.0024 0.0028
Slot
2 0.50 1.5 (268-402) Feed 4.9 4.9 5.3 6.1 8.2 10.2 10.2 8.2 7.2
3 0.25 1.5 (IPM) 7.4 7.4 8.0 9.2 12.3 15.4 15.4 12.3 10.7
CAST IRONS 4 0.25 9.8 9.8 10.6 12.3 16.4 20.5 20.5 16.4 14.3
K Gray, Malleable, 220 1.5
2 1
Ductile 3 1 245 RPM 59898 29949 14974 7487 3744 2496 1872 1248 936
Fz 0.00003 0.00006 0.00013 0.0003 0.0008 0.0015 0.0020 0.0024 0.0028
1 (196-294) Feed 3.6 3.6 3.9 4.5 6.0 7.5 7.5 6.0 5.2
0.5 (IPM) 5.4 5.4 5.8 6.7 9.0 11.2 11.2 9.0 7.9
7.2 7.2 7.8 9.0 12.0 15.0 15.0 12.0 10.5
4 1 0.4
370 RPM 90458 45229 22614 11307 5654 3769 2827 1885 1413
Profile Fz 0.00002 0.00005 0.00009 0.0002 0.0006 0.0011 0.0015 0.0018 0.0021
Slot
STAINLESS STEELS 2 0.50 1.5 (296-444) Feed 3.6 4.5 4.1 4.5 6.8 8.3 8.5 6.8 5.9
3 0.25 1.5 (IPM) 5.4 6.8 6.1 6.8 10.2 12.4 12.7 10.2 8.9
4 0.25 7.2 9.0 8.1 9.0 13.6 16.6 17.0 13.6 11.9
M (Free MachiNIng) 275 1.5
303, 416, 420F, 430F 2 1
440F 3 1 270 RPM 66010 33005 16502 8251 4126 2750 2063 1375 1031
4 1
Fz 0.00002 0.00005 0.00009 0.0002 0.0006 0.0011 0.0015 0.0018 0.0021
1 (216-324) Feed 2.6 3.3 3.0 3.3 5.0 6.1 6.2 5.0 4.3
0.5 (IPM) 4.0 5.0 4.5 5.0 7.4 9.1 9.3 7.4 6.5
5.3 6.6 5.9 6.6 9.9 12.1 12.4 9.9 8.7
0.4
255 RPM 62342 31171 15586 7793 3896 2598 1948 1299 974
Profile Fz 0.00002 0.00004 0.00008 0.0002 0.0005 0.0009 0.0012 0.0014 0.0017
Slot
STAINLESS STEELS 2 0.50 1.5 (204-306) Feed 2.5 2.5 2.5 2.6 3.9 4.7 4.7 3.6 3.3
(Difficult) 3 0.25 1.5 (IPM) 3.7 3.7 3.7 4.0 5.8 7.0 7.0 5.5 5.0
M 304, 304L, 316, 316L, 4 0.25 5.0 5.0 5.0 5.3 7.8 9.4 9.4 7.3 6.6
17-4 PH, 15-5, 13-4, 275 1.5
Custom 450 2 1
3 1 185 RPM 45229 22614 11307 5654 2827 1885 1413 942 707
4 1
Fz 0.00002 0.00004 0.00008 0.0002 0.0005 0.0009 0.0012 0.0014 0.0017
1 (148-222) Feed 1.8 1.8 1.8 1.9 2.8 3.4 3.4 2.6 2.4
0.5 (IPM) 2.7 2.7 2.7 2.9 4.2 5.1 5.1 4.0 3.6
3.6 3.6 3.6 3.8 5.7 6.8 6.8 5.3 4.8
0.4
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END MILLS END MILLS 139
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