252 / 396
DRILLS
DRILLS
252
www.kyocera-sgstool.com
METRIC
Hi-PerCarb
Series
135 3D
Metric
Hardness
Vc
(m/min)
Diameter (D
1
)
(inch)
1.5
3
6
8
10
12
16
20
P
CARBON STEELS
1018, 1040, 1080, 1090, 10L50,
1140, 1212, 12L15, 1525, 1536
≤ 175 Bhn
or
≤ 7 HRc
117
RPM 24882
12441
6220
4665
3732
3110
2333
1866
(94-141)
Fr
0.047
0.094
0.189
0.252
0.315
0.378
0.504
0.630
Feed (mm/min)
1175
1175
1175
1175
1175
1175
1175
1175
≤ 275 Bhn
or
≤ 28 HRc
107
RPM 22620
11310
5655
4241
3393
2827
2121
1696
(85-128)
Fr
0.043
0.086
0.172
0.229
0.286
0.343
0.457
0.572
Feed (mm/min)
970
970
970
970
970
970
970
970
≤ 475 Bhn
or
≤ 45 HRc
61
RPM 12926
6463
3231
2424
1939
1616
1212
969
(49-73)
Fr
0.036
0.071
0.142
0.190
0.237
0.285
0.380
0.475
Feed (mm/min)
460
460
460
460
460
460
460
460
ALLOY STEELS
4140, 4150, 4320, 5120, 5150,
8630, 86L20, 50100
≤ 275 Bhn
or
≤ 28 HRc
91
RPM 19388
9694
4847
3635
2908
2424
1818
1454
(73-110)
Fr
0.036
0.071
0.142
0.190
0.237
0.285
0.380
0.475
Feed (mm/min)
690
690
690
690
690
690
690
690
≤ 375 Bhn
or
≤ 40 HRc
56
RPM 11956
5978
2989
2242
1793
1495
1121
897
(45-68)
Fr
0.031
0.061
0.122
0.163
0.204
0.244
0.326
0.407
Feed (mm/min)
365
365
365
365
365
365
365
365
≤ 450 Bhn
or
≤ 48 HRc
40
RPM 8402
4201
2100
1575
1260
1050
788
630
(32-48)
Fr
0.021
0.042
0.083
0.111
0.139
0.167
0.222
0.278
Feed (mm/min)
175
175
175
175
175
175
175
175
H
TOOL STEELS
A2, D2, H13, L2, M2,
P20, S7, T15, W2
≤ 200 Bhn
or
≤ 13 HRc
40
RPM 8402
4201
2100
1575
1260
1050
788
630
(32-48)
Fr
0.032
0.063
0.126
0.168
0.210
0.252
0.336
0.421
Feed (mm/min)
265
265
265
265
265
265
265
265
≤ 375 Bhn
or
≤ 40 HRc
27
RPM 5816
2908
1454
1091
872
727
545
436
(22-33)
Fr
0.014
0.028
0.055
0.073
0.092
0.110
0.147
0.183
Feed (mm/min)
80
80
80
80
80
80
80
80
≤ 475 Bhn
or
≤ 50 HRc
23
RPM 4847
2424
1212
909
727
606
454
364
(18-27)
Fr
0.009
0.019
0.037
0.050
0.062
0.074
0.099
0.124
Feed (mm/min)
45
45
45
45
45
45
45
45
K
CAST IRONS
Gray, Malleable,
Ductile
≤ 220 Bhn
or
≤ 19 HRc
98
RPM 20681
10340
5170
3878
3102
2585
1939
1551
(78-117)
Fr
0.055
0.110
0.220
0.293
0.366
0.439
0.585
0.732
Feed (mm/min)
1135
1135
1135
1135
1135
1135
1135
1135
≤ 260 Bhn
or
≤ 26 HRc
87
RPM 18419
9209
4605
3454
2763
2302
1727
1381
(69-104)
Fr
0.055
0.110
0.219
0.292
0.366
0.439
0.585
0.731
Feed (mm/min)
1010
1010
1010
1010
1010
1010
1010
1010
M
STAINLESS STEELS
(FREE MACHINING)
303, 416, 420F, 430F, 440F
≤ 185 Bhn
or
≤ 9 HRc
84
RPM 17773
8886
4443
3332
2666
2222
1666
1333
(67-101)
Fr
0.031
0.061
0.123
0.164
0.204
0.245
0.327
0.409
Feed (mm/min)
545
545
545
545
545
545
545
545
≤ 275 Bhn
or
≤ 28 HRc
52
RPM 10987
5493
2747
2060
1648
1373
1030
824
(41-62)
Fr
0.024
0.047
0.095
0.126
0.158
0.189
0.252
0.316
Feed (mm/min)
260
260
260
260
260
260
260
260
STAINLESS STEELS
(DIFFICULT)
304, 316, 321, 13-8 PH,
15-5PH, 17-4 PH, Custom 450
≤ 275 Bhn
or
≤ 28 HRc
27
RPM 5816
2908
1454
1091
872
727
545
436
(22-33)
Fr
0.023
0.046
0.093
0.124
0.155
0.186
0.248
0.309
Feed (mm/min)
135
135
135
135
135
135
135
135
≤ 375 Bhn
or
≤ 40 HRc
20
RPM 4201
2100
1050
788
630
525
394
315
(16-24)
Fr
0.020
0.040
0.081
0.108
0.135
0.162
0.216
0.270
Feed (mm/min)
85
85
85
85
85
85
85
85
continued on next page