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DRILLS
DRILLS
329
www.kyocera-sgstool.com
METRIC
Combined Drill & Countersink
Series
301M
Metric
Hardness
Vc
(m/min)
Diameter (D
1
)
(mm)
1
1.6
2.5
4
5
S
SUPER ALLOYS
(NICKEL, COBALT,
IRON BASE)
Inconel 601, 617, 625,
Incoloy 800, Monel 400,
Rene, Waspaloy
≤ 220 Bhn
or
≤ 19 HRc
12
RPM
1231
969
616
388
310
(10-15)
Fr
0.009
0.011
0.018
0.028
0.035
Feed (mm/min)
11
11
11
11
11
≤ 320 Bhn
or
≤ 34 HRc
8
RPM
769
606
385
242
194
(6-9)
Fr
0.008
0.010
0.016
0.025
0.031
Feed (mm/min)
6
6
6
6
6
≤ 425 Bhn
or
≤ 45 HRc
6
RPM
616
485
308
194
155
(5-7)
Fr
0.003
0.004
0.006
0.010
0.013
Feed (mm/min)
2
2
2
2
2
TITANIUM ALLOYS
Pure Titanium, Ti6Al4V,
Ti6Al2Sn4Zr2Mo,
Ti4Al4Mo2Sn0.5Si,
Ti-6Al4V
≤ 275 Bhn
or
≤ 28 HRc
26
RPM
2616
2060
1308
824
659
(21-31)
Fr
0.016
0.020
0.032
0.051
0.064
Feed (mm/min)
42
42
42
42
42
≤ 350 Bhn
or
≤ 38 HRc
20
RPM
2000
1575
1000
630
504
(16-24)
Fr
0.009
0.011
0.018
0.029
0.036
Feed (mm/min)
18
18
18
18
18
≤ 440 Bhn
or
≤ 47 HRc
17
RPM
1693
1333
846
533
427
(13-20)
Fr
0.008
0.011
0.017
0.026
0.033
Feed (mm/min)
14
14
14
14
14
N
ALUMINUM ALLOYS
2017, 2024, 356,
6061, 7075
≤ 80 Bhn
or
≤ 47 HRb
165
RPM
16619
13087
8309
5235
4188
(132-198)
Fr
0.025
0.032
0.050
0.079
0.099
Feed (mm/min)
415
415
415
415
415
≤ 150 Bhn
or
≤ 7 HRc
139
RPM
14003
11027
7001
4411
3529
(111-166)
Fr
0.025
0.032
0.050
0.079
0.099
Feed (mm/min)
350
350
350
350
350
COPPER ALLOYS
Alum Bronze, C110,
Muntz Brass
≤ 140 Bhn
or
≤ 3 HRc
58
RPM
5847
4605
2924
1842
1474
(46-69)
Fr
0.012
0.015
0.024
0.038
0.048
Feed (mm/min)
70
70
70
70
70
≤ 200 Bhn
or
≤ 23 HRc
53
RPM
5386
4241
2693
1696
1357
(43-64)
Fr
0.012
0.015
0.024
0.038
0.048
Feed (mm/min)
65
65
65
65
65
PLASTICS
Polycarbonate, PVC
152
RPM
15388
12118
7694
4847
3878
(122-183)
Fr
0.025
0.032
0.050
0.079
0.099
Feed (mm/min)
385
385
385
385
385
Bhn (Brinell) HRc (Rockwell C) HRb (Rockwell B)
rpm = (Vc x 1000) / (D
1
x 3.14)
mm/min = Fr x rpm
reduce speed and feed 30 percent when using uncoated drills
reduce speed and feed for materials harder than listed
refer to the KYOCERA SGS Tool Wizard
®
for complete technical information (www.kyocera-sgstool.com)