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DRILLS
DRILLS
312
www.kyocera-sgstool.com
METRIC
2 Flute Drills
Short Length Self Centering Drills • DIN 6539
Series
101M, 108M
Metric
Hardness
Vc
(m/min)
Diameter (D
1
)
(mm)
1
3
6
8
10
12
16
P
CARBON STEELS
1018, 1040, 1080, 1090,
10L50, 1140, 1212,
12L15, 1525, 1536
≤ 175 Bhn
or
≤ 7 HRc
81
RPM 25690
8563
4282
3211
2569
2141
1606
(65-97)
Fr
0.014
0.041
0.082
0.109
0.136
0.163
0.218
Feed (mm/min)
350
350
350
350
350
350
350
≤ 300 Bhn
or
≤ 32 HRc
38
RPM 12118
4039
2020
1515
1212
1010
757
(30-46)
Fr
0.012
0.036
0.072
0.096
0.120
0.144
0.191
Feed (mm/min)
145
145
145
145
145
145
145
≤ 425 Bhn
or
≤ 45 HRc
26
RPM 8240
2747
1373
1030
824
687
515
(21-31)
Fr
0.007
0.020
0.040
0.053
0.067
0.080
0.107
Feed (mm/min)
55
55
55
55
55
55
55
ALLOY STEELS
4140, 4150, 4320, 5120,
5150, 8630, 86L20, 50100
≤ 275 Bhn
or
≤ 28 HRc
70
RPM 22297
7432
3716
2787
2230
1858
1394
(56-84)
Fr
0.012
0.036
0.073
0.097
0.121
0.145
0.194
Feed (mm/min)
270
270
270
270
270
270
270
≤ 375 Bhn
or
≤ 40 HRc
44
RPM 14057
4686
2343
1757
1406
1171
879
(35-53)
Fr
0.012
0.036
0.073
0.097
0.121
0.145
0.194
Feed (mm/min)
170
170
170
170
170
170
170
≤ 450 Bhn
or
≤ 48 HRc
18
RPM 5816
1939
969
727
582
485
364
(15-22)
Fr
0.005
0.015
0.030
0.040
0.050
0.060
0.080
Feed (mm/min)
29
29
29
29
29
29
29
H
TOOL STEELS
A2, D2, H13, L2, M2,
P20, S7, T15, W2
≤ 250 Bhn
or
≤ 24 HRc
26
RPM 8240
2747
1373
1030
824
687
515
(21-31)
Fr
0.007
0.020
0.040
0.053
0.067
0.080
0.107
Feed (mm/min)
55
55
55
55
55
55
55
≤ 375 Bhn
or
≤ 40 HRc
17
RPM 5332
1777
889
666
533
444
333
(13-20)
Fr
0.003
0.010
0.020
0.027
0.034
0.041
0.054
Feed (mm/min)
18
18
18
18
18
18
18
≤ 475 Bhn
or
≤ 50 HRc
12
RPM 3878
1293
646
485
388
323
242
(10-15)
Fr
0.003
0.009
0.019
0.025
0.031
0.037
0.050
Feed (mm/min)
12
12
12
12
12
12
12
K
CAST IRONS
Gray, Malleable,
Ductile
≤ 220 Bhn
or
≤ 19 HRc
85
RPM 27144
9048
4524
3393
2714
2262
1696
(68-102)
Fr
0.016
0.049
0.097
0.130
0.162
0.195
0.259
Feed (mm/min)
440
440
440
440
440
440
440
≤ 330 Bhn
or
≤ 36 HRc
76
RPM 24235
8078
4039
3029
2424
2020
1515
(61-91)
Fr
0.017
0.050
0.099
0.132
0.165
0.198
0.264
Feed (mm/min)
400
400
400
400
400
400
400
M
STAINLESS STEELS
(FREE MACHINING)
303, 416, 420F, 430F 440F
≤ 250 Bhn
or
≤ 24 HRc
64
RPM 20358
6786
3393
2545
2036
1696
1272
(51-77)
Fr
0.010
0.029
0.059
0.079
0.098
0.118
0.157
Feed (mm/min)
200
200
200
200
200
200
200
≤ 330 Bhn
or
≤ 36 HRc
34
RPM 10664
3555
1777
1333
1066
889
666
(27-40)
Fr
0.006
0.017
0.034
0.045
0.056
0.068
0.090
Feed (mm/min)
60
60
60
60
60
60
60
STAINLESS STEELS
(DIFFICULT)
304, 316, 321, 13-8 PH,
15-5PH, 17-4 PH,
Custom 450
≤ 275 Bhn
or
≤ 28 HRc
20
RPM 6301
2100
1050
788
630
525
394
(16-24)
Fr
0.007
0.021
0.043
0.057
0.071
0.086
0.114
Feed (mm/min)
45
45
45
45
45
45
45
≤ 375 Bhn
or
≤ 40 HRc
17
RPM 5332
1777
889
666
533
444
333
(13-20)
Fr
0.007
0.020
0.039
0.053
0.066
0.079
0.105
Feed (mm/min)
35
35
35
35
35
35
35
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