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DRILLS
DRILLS
317
www.kyocera-sgstool.com
FRACTIONAL & METRIC
Straight Flute Drills
Series
106
Fractional
Hardness
Vc
(sfm)
Diameter (D
1
)
(inch)
1/16
1/8
3/16
1/4
3/8
1/2
P
ALLOY STEELS
4140, 4150, 4320, 5120,
5150, 8630, 86L20, 50100
≤ 500 Bhn
or
≤ 52 HRc
60
RPM
3667
1834
1222
917
611
458
(48-72)
Fr
0.0004
0.0007
0.0011
0.0014
0.0021
0.0028
Feed (ipm)
1.3
1.3
1.3
1.3
1.3
1.3
≤ 615 Bhn
or
≤ 58 HRc
50
RPM
3056
1528
1019
764
509
382
(40-60)
Fr
0.0004
0.0008
0.0012
0.0016
0.0024
0.0031
Feed (ipm)
1.2
1.2
1.2
1.2
1.2
1.2
H
TOOL STEELS
A2, D2, H13, L2, M2,
P20, S7, T15, W2
≤ 500 Bhn
or
≤ 52 HRc
60
RPM
3667
1834
1222
917
611
458
(48-72)
Fr
0.0004
0.0007
0.0011
0.0014
0.0021
0.0028
Feed (ipm)
1.3
1.3
1.3
1.3
1.3
1.3
≤ 615 Bhn
or
≤ 58 HRc
50
RPM
3056
1528
1019
764
509
382
(40-60)
Fr
0.0004
0.0008
0.0012
0.0016
0.0024
0.0031
Feed (ipm)
1.2
1.2
1.2
1.2
1.2
1.2
K
CAST IRONS
Gray, Malleable,
Ductile
≤ 220 Bhn
or
≤ 19 HRc
250
RPM 15280
7640
5093
3820
2547
1910
(200-300)
Fr
0.0010
0.0020
0.0030
0.0041
0.0061
0.0081
Feed (ipm)
15.5
15.5
15.5
15.5
15.5
15.5
≤ 330 Bhn
or
≤ 36 HRc
195
RPM 11918
5959
3973
2980
1986
1490
(156-234)
Fr
0.0010
0.0020
0.0030
0.0040
0.0060
0.0081
Feed (ipm)
12.0
12.0
12.0
12.0
12.0
12.0
Bhn (Brinell) HRc (Rockwell C)
rpm = Vc x 3.82 / D
1
ipm = Fr x rpm
reduce speed and feed 30 percent when using uncoated drills
refer to the KYOCERA SGS Tool Wizard
®
for complete technical information (www.kyocera-sgstool.com)
Series
106M
Metric
Hardness
Vc
(m/min)
Diameter (D
1
)
(mm)
1
3
6
8
10
12
P
ALLOY STEELS
4140, 4150, 4320, 5120,
5150, 8630, 86L20, 50100
≤ 500 Bhn
or
≤ 52 HRc
18
RPM
5816
1939
969
727
582
485
(15-22)
Fr
0.006
0.018
0.035
0.047
0.058
0.070
Feed (mm/min)
34
34
34
34
34
34
≤ 615 Bhn
or
≤ 58 HRc
15
RPM
4847
1616
808
606
485
404
(12-18)
Fr
0.006
0.017
0.033
0.045
0.056
0.067
Feed (mm/min)
27
27
27
27
27
27
H
TOOL STEELS
A2, D2, H13, L2, M2,
P20, S7, T15, W2
≤ 500 Bhn
or
≤ 52 HRc
18
RPM
5816
1939
969
727
582
485
(15-22)
Fr
0.006
0.018
0.035
0.047
0.058
0.070
Feed (mm/min)
34
34
34
34
34
34
≤ 615 Bhn
or
≤ 58 HRc
15
RPM
4847
1616
808
606
485
404
(12-18)
Fr
0.006
0.017
0.033
0.045
0.056
0.067
Feed (mm/min)
27
27
27
27
27
27
K
CAST IRONS
Gray, Malleable,
Ductile
≤ 220 Bhn
or
≤ 19 HRc
76
RPM 24235
8078
4039
3029
2424
2020
(61-91)
Fr
0.016
0.048
0.096
0.128
0.160
0.192
Feed (mm/min)
395
395
395
395
395
395
≤ 330 Bhn
or
≤ 36 HRc
59
RPM 18904
6301
3151
2363
1890
1575
(48-71)
Fr
0.016
0.048
0.096
0.128
0.160
0.192
Feed (mm/min)
305
305
305
305
305
305
Bhn (Brinell) HRc (Rockwell C)
rpm = (Vc x 1000) / (D
1
x 3.14)
mm/min = Fr x rpm
reduce speed and feed 30 percent when using uncoated drills
refer to the KYOCERA SGS Tool Wizard
®
for complete technical information (www.kyocera-sgstool.com)