Kyocera-SGS-Catalog-2019-web

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DRILLS DRILLS 328
www.kyocera-sgstool.com
METRIC
Combined Drill & Countersink
Series
301M
Metric Hardness
Vc
(m/min)
Diameter (D1)
(mm)
1 1.6 2.5 4 5
P
CARBON STEELS
1018, 1040, 1080, 1090,
10L50, 1140, 1212,
12L15, 1525, 1536
≤ 175 Bhn
or
≤ 7 HRc
81 RPM 8155 6422 4078 2569 2055
(65-97)
Fr 0.017 0.022 0.034 0.054 0.068
Feed (mm/min) 139 139 139 139 139
≤ 300 Bhn
or
≤ 32 HRc
38 RPM 3847 3029 1923 1212 969
(30-46)
Fr 0.016 0.020 0.032 0.051 0.064
Feed (mm/min) 62 62 62 62 62
≤ 425 Bhn
or
≤ 45 HRc
26 RPM 2616 2060 1308 824 659
(21-31)
Fr 0.010 0.013 0.020 0.032 0.039
Feed (mm/min) 26 26 26 26 26
ALLOY STEELS
4140, 4150, 4320, 5120,
5150, 8630, 86L20, 50100
≤ 275 Bhn
or
≤ 28 HRc
70 RPM 7078 5574 3539 2230 1784
(56-84)
Fr 0.016 0.020 0.032 0.051 0.063
Feed (mm/min) 113 113 113 113 113
≤ 375 Bhn
or
≤ 40 HRc
44 RPM 4462 3514 2231 1406 1125
(35-53)
Fr 0.015 0.019 0.030 0.048 0.060
Feed (mm/min) 67 67 67 67 67
≤ 450 Bhn
or
≤ 48 HRc
18 RPM 1847 1454 923 582 465
(15-22)
Fr 0.007 0.009 0.014 0.022 0.028
Feed (mm/min) 13 13 13 13 13
H
TOOL STEELS
A2, D2, H13, L2, M2,
P20, S7, T15, W2
≤ 250 Bhn
or
≤ 24 HRc
26 RPM 2616 2060 1308 824 659
(21-31)
Fr 0.009 0.012 0.018 0.029 0.036
Feed (mm/min) 24 24 24 24 24
≤ 375 Bhn
or
≤ 40 HRc
17 RPM 1693 1333 846 533 427
(13-20)
Fr 0.004 0.005 0.008 0.013 0.016
Feed (mm/min) 7 7 7 7 7
≤ 475 Bhn
or
≤ 50 HRc
12 RPM 1231 969 616 388 310
(10-15)
Fr 0.004 0.005 0.008 0.013 0.016
Feed (mm/min) 5 5 5 5 5
K
CAST IRONS
Gray, Malleable,
Ductile
≤ 220 Bhn
or
≤ 19 HRc
85 RPM 8617 6786 4309 2714 2171
(68-102)
Fr 0.021 0.027 0.042 0.067 0.083
Feed (mm/min) 181 181 181 181 181
≤ 330 Bhn
or
≤ 36 HRc
76 RPM 7694 6059 3847 2424 1939
(61-91)
Fr 0.021 0.027 0.042 0.067 0.084
Feed (mm/min) 162 162 162 162 162
M
STAINLESS STEELS
(FREE MACHINING)
303, 416, 420F, 430F 440F
≤ 250 Bhn
or
≤ 24 HRc
64 RPM 6463 5089 3231 2036 1629
(51-77)
Fr 0.012 0.015 0.024 0.038 0.048
Feed (mm/min) 78 78 78 78 78
≤ 330 Bhn
or
≤ 36 HRc
34 RPM 3385 2666 1693 1066 853
(27-40)
Fr 0.007 0.009 0.014 0.023 0.028
Feed (mm/min) 24 24 24 24 24
STAINLESS STEELS
(DIFFICULT)
304, 316, 321, 13-8 PH,
15-5PH, 17-4 PH,
Custom 450
≤ 275 Bhn
or
≤ 28 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
≤ 375 Bhn
or
≤ 40 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
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