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END MILLS
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FRACTIONAL
Multi-Carb
Series
66, 66CR
Fractional
Hardness
Ap
Ae
Ae
Vc
(sfm)
Diameter (D
1
)
(inch)
Ae x D
1
Ap x D
1
3/16
1/4
3/8
1/2
5/8
3/4
1
P
CARBON STEELS
1018, 1040, 1080,
1090, 10L50, 1140,
1212, 12L15, 1525,
1536
≤ 275 Bhn
or
≤ 28 HRc
Profile
≤ 0.05
≤ 1
635
RPM 12937
9703
6469
4851
3881
3234
2426
(508-762)
Fz
0.0008 0.0012 0.0022 0.0030 0.0037 0.0038 0.0042
Feed (ipm)
72.4
81.5
99.6
131.0
129.2
135.2
112.1
Finish
≤ 0.02
≤ 2
762
RPM 15524 11643
7762
5822
4657
3881
2911
(610-914)
Fz
0.0006 0.0010 0.0018 0.0024 0.0030 0.0030 0.0034
Feed (ipm)
69.5
78.2
95.6
125.7
124.1
129.8
107.6
ALLOY STEELS
4140, 4150, 4320,
5120, 5150, 8630,
86L20, 50100
≤ 375 Bhn
or
≤ 40 HRc
Profile
≤ 0.05
≤ 1
360
RPM 7334
5501
3667
2750
2200
1834
1375
(288-432)
Fz
0.0006 0.0009 0.0017 0.0023 0.0029 0.0030 0.0032
Feed (ipm)
30.8
34.7
43.6
56.9
57.4
60.5
48.4
Finish
≤ 0.02
≤ 2
432
RPM 8801
6601
4401
3300
2640
2200
1650
(346-518)
Fz
0.0005 0.0007 0.0014 0.0018 0.0023 0.0024 0.0026
Feed (ipm)
29.6
33.3
41.9
54.7
55.1
58.1
46.5
H
TOOL STEELS
A2, D2, H13, L2, M2,
P20, S7, T15, W2
≤ 375 Bhn
or
≤ 40 HRc
Profile
≤ 0.05
≤ 1
290
RPM 5908
4431
2954
2216
1772
1477
1108
(232-348)
Fz
0.0004 0.0006 0.0012 0.0016 0.0020 0.0021 0.0022
Feed (ipm)
16.5
18.6
24.8
31.9
31.9
34.1
26.8
Finish
≤ 0.02
≤ 2
348
RPM 7090
5317
3545
2659
2127
1772
1329
(278-418)
Fz
0.0003 0.0005 0.0010 0.0013 0.0016 0.0017 0.0018
Feed (ipm)
15.9
17.9
23.8
30.6
30.6
32.8
25.7
K
CAST IRONS
(LOW & MEDIUM
ALLOY)
Gray, Malleable,
Ductile
≤ 220 Bhn
or
≤ 19 HRc
Profile
≤ 0.05
≤ 1
705
RPM 14363 10772
7182
5386
4309
3591
2693
(564-846)
Fz
0.0008 0.0012 0.0022 0.0030 0.0037 0.0038 0.0042
Feed (ipm)
80.4
90.5
110.6
145.4
143.5
150.1
124.4
Finish
≤ 0.02
≤ 2
846
RPM 17236 12927
8618
6463
5171
4309
3232
(677-1015)
Fz
0.0006 0.0010 0.0018 0.0024 0.0030 0.0030 0.0034
Feed (ipm)
77.2
86.9
106.2
139.6
137.7
144.1
119.4
CAST IRONS
(HIGH ALLOY)
Gray, Malleable,
Ductile
≤ 260 Bhn
or
≤ 26 HRc
Profile
≤ 0.05
≤ 1
540
RPM 11002
8251
5501
4126
3300
2750
2063
(432-648)
Fz
0.0006 0.0009 0.0017 0.0023 0.0029 0.0030 0.0032
Feed (ipm)
46.2
52.0
65.5
85.4
86.1
90.8
72.6
Finish
≤ 0.02
≤ 2
648
RPM 13202
9901
6601
4951
3961
3300
2475
(518-778)
Fz
0.0005 0.0007 0.0014 0.0018 0.0023 0.0024 0.0026
Feed (ipm)
44.4
49.9
62.8
82.0
82.7
87.1
69.7
M
STAINLESS STEELS
(FREE MACHINING)
303, 416, 420F,
430F, 440F
≤ 275 Bhn
or
≤ 28 HRc
Profile
≤ 0.05
≤ 1
560
RPM 11409
8557
5705
4278
3423
2852
2139
(448-672)
Fz
0.0006 0.0009 0.0017 0.0023 0.0029 0.0030 0.0032
Feed (ipm)
47.9
53.9
67.9
88.6
89.3
94.1
75.3
Finish
≤ 0.02
≤ 2
448
RPM 9127
6845
4564
3423
2738
2282
1711
(358-538)
Fz
0.0005 0.0007 0.0014 0.0018 0.0023 0.0024 0.0026
Feed (ipm)
30.7
34.5
43.4
56.7
57.2
60.2
48.2
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