
| Series 61 | Ae | Ap Ae | Vc | Diameter (D1 (inch) | ) | ||||||
| Fractional | Hardness | Ae x D1 | Ap x D1 | (sfm) | 1/4 | 3/8 | 1/2 | 3/4 | 1 | ||
| Profile | 500 | RPM | 7640 | 5093 | 3820 | 2547 | 1910 | ||||
| CARBON STEELS | ≤ 0.5 | ≤ 1.5 | (400-600) | Fz | 0.0006 | 0.0011 | 0.0014 | 0.0017 | 0.0020 | ||
| 1018, 1040, 1080, 1090 10L50 1140 | ≤ 175 Bhn or | Feed (ipm) | 13.8 | 16.8 | 21.4 | 17.3 | 19.1 | ||||
| , , , 1212, 12L15, 1525, 1536 | ≤ 7 HRc | Slot | 400 | RPM | 6112 | 4075 | 3056 | 2037 | 1528 | ||
| 1 | ≤ 1 | (320-480) | Fz | 0.0006 | 0.0011 | 0.0014 | 0.0017 | 0.0020 | |||
| P | Feed (ipm) | 11.0 | 13.4 | 17.1 | 13.9 | 15.3 | |||||
| Profile | 365 | RPM | 5577 | 3718 | 2789 | 1859 | 1394 | ||||
| ≤ 0.5 | ≤ 1.5 | (292438) | Fz | 0.0004 | 0.0008 | 0.0011 | 0.0013 | 0.0015 | |||
| ALLOY STEELS 4140, 4150, 4320, | ≤ 275 Bhn | - | Feed (ipm) | 6.7 | 8.9 | 12.3 | 9.7 | 10.5 | |||
| 5120, 5150, 8630, 86L20, 50100 | or ≤ 28 HR | Slot | 295 | RPM | 4508 | 3005 | 2254 | 1503 | 1127 | ||
| 1 | ≤ 1 | (236-354) | Fz | 0.0004 | 0.0008 | 0.0011 | 0.0013 | 0.0015 | |||
| Feed (ipm) | 5.4 | 7.2 | 9.9 | 7.8 | 8.5 | ||||||
| Profile | 345 | RPM | 5272 | 3514 | 2636 | 1757 | 1318 | ||||
| ≤ 0.5 | ≤ 1.5 | (276-414) | Fz | 0.0006 | 0.0009 | 0.0015 | 0.0018 | 0.0021 | |||
| H TOOL STEELS A2 D2 H13 L2 M2 | ≤ 250 Bhn | Feed (ipm) | 9.5 | 9.5 | 15.8 | 12.7 | 13.8 | ||||
| , , , , , P20, S7, T15, W2 | or ≤ 24 HRc | Slot | 275 | RPM | 4202 | 2801 | 2101 | 1401 | 1051 | ||
| 1 | ≤ 1 | (220-330) | Fz | 0.0006 | 0.0009 | 0.0015 | 0.0018 | 0.0021 | |||
| Feed (ipm) | 7.6 | 7.6 | 12.6 | 10.1 | 11.0 | ||||||
| Profile | 365 | RPM | 5577 | 3718 | 2789 | 1859 | 1394 | ||||
| ≤ 0.5 | ≤ 1.5 | (292-438) | Fz | 0.0008 | 0.0015 | 0.0020 | 0.0024 | 0.0028 | |||
| K CAST IRONS Gra Malleable | ≤ 220 Bhn or | Feed (ipm) | 13.4 | 16.7 | 22.3 | 17.8 | 19.5 | ||||
| y, , Ductile | ≤ 19 HRc | Slot | 295 | RPM | 4508 | 3005 | 2254 | 1503 | 1127 | ||
| 1 | ≤ 1 | 236354 | Fz | 0.0008 | 0.0015 | 0.0020 | 0.0024 | 0.0028 | |||
| (-) | Feed (ipm) | 10.8 | 13.5 | 18.0 | 14.4 | 15.8 |
Bhn (Brinell) HRc (Rockwell C) rpm = (Vc x 3.82) / D1 ipm = Fz x number of flutes x rpm reduce speed and feed for materials harder than listed refer to the KYOCERA SGS Tool Wizard® for complete technical information (www.kyocera-sgstool.com)