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METRIC
Single End Roughers (Coarse Pitch)
Series
61M
Metric
Hardness
Ap
Ae
Ae
Vc
(m/min)
Diameter (D
1
)
(mm)
Ae x D
1
Ap x D
1
6
10
12
20
25
P
CARBON STEELS
1018, 1040, 1080,
1090, 10L50, 1140,
1212, 12L15, 1525,
1536
≤ 175 Bhn
or
≤ 7 HRc
Profile
≤ 0.5
≤ 1.5
152
RPM 8078
4847
4039
2424
1939
(122-183)
Fz
0.014
0.029
0.034
0.045
0.050
Feed (mm/min)
339
422
549
436
485
Slot
1
≤ 1
122
RPM 6463
3878
3231
1939
1551
(98-146)
Fz
0.014
0.029
0.034
0.045
0.050
Feed (mm/min)
271
337
439
349
388
ALLOY STEELS
4140, 4150, 4320,
5120, 5150, 8630,
86L20, 50100
≤ 275 Bhn
or
≤ 28 HR
Profile
≤ 0.5
≤ 1.5
111
RPM 5897
3538
2949
1769
1415
(89-134)
Fz
0.010
0.021
0.026
0.035
0.038
Feed (mm/min)
177
223
307
248
269
Slot
1
≤ 1
90
RPM 4766
2860
2383
1430
1144
(72-108)
Fz
0.010
0.021
0.026
0.035
0.038
Feed (mm/min)
143
180
248
200
217
H
TOOL STEELS
A2, D2, H13, L2, M2,
P20, S7, T15, W2
≤ 250 Bhn
or
≤ 24 HRc
Profile
≤ 0.5
≤ 1.5
105
RPM 5574
3344
2787
1672
1338
(84-126)
Fz
0.014
0.024
0.036
0.048
0.053
Feed (mm/min)
234
241
401
321
355
Slot
1
≤ 1
84
RPM 4443
2666
2222
1333
1066
(67-101)
Fz
0.014
0.024
0.036
0.048
0.053
Feed (mm/min)
187
192
320
256
283
K
CAST IRONS
Gray, Malleable,
Ductile
≤ 220 Bhn
or
≤ 19 HRc
Profile
≤ 0.5
≤ 1.5
111
RPM 5897
3538
2949
1769
1415
(89-134)
Fz
0.019
0.040
0.048
0.064
0.070
Feed (mm/min)
336
425
566
453
495
Slot
1
≤ 1
90
RPM 4766
2860
2383
1430
1144
(72-108)
Fz
0.019
0.040
0.048
0.064
0.070
Feed (mm/min)
272
343
458
366
400
Bhn (Brinell) HRc (Rockwell C)
rpm = (Vc x 1000) / (D
1
x 3.14)
mm/min = Fz x number of flutes x rpm
reduce speed and feed for materials harder than listed
refer to the KYOCERA SGS Tool Wizard
®
for complete technical information (www.kyocera-sgstool.com)