
| Series 66M, 66MCR | Ae | Ap Ae | Vc | D | iameter (D (mm) | 1) | |||||||
| Metric | Hardness | Ae x D1 | Ap x D1 | (m/min) | 6 | 8 | 10 | 12 | 16 | 20 | 25 | ||
| Profile | 194 | RPM | 10260 | 7695 | 6156 | 5130 | 3847 | 3078 | 2462 | ||||
| CARBON STEELS | ≤ 0.05 | ≤ 1 | (155-232) | Fz | 0.029 | 0.047 | 0.059 | 0.072 | 0.095 | 0.101 | 0.105 | ||
| 1018, 1040, 1080, 1090 10L50 1140 | ≤ 275 Bhn or | Feed (mm/min) | 2068 | 2528 | 2528 | 3324 | 3280 | 3431 | 2844 | ||||
| , , , 1212, 12L15, 1525, 1536 | ≤ 28 HRc | Finish | 232 | RPM | 12312 | 9234 | 7387 | 6156 | 4617 | 3693 | 2955 | ||
| ≤ 0.02 | ≤ 2 | (186-279) | Fz | 0.023 | 0.038 | 0.047 | 0.058 | 0.076 | 0.081 | 0.084 | |||
| P | Feed (mm/min) | 1985 | 2427 | 2427 | 3191 | 3149 | 3294 | 2730 | |||||
| Pfil | 110 | RPM | 5816 | 4362 | 3490 | 2908 | 2181 | 1745 | 1396 | ||||
| roe | ≤ 0.05 | ≤ 1 | Fz | 0.022 | 0.036 | 0.045 | 0.055 | 0.074 | 0.080 | 0.080 | |||
| ALLOY STEELS 4140, 4150, 4320, | ≤ 375 Bhn | (88-132) | Feed (mm/min) | 879 | 1108 | 1107 | 1445 | 1457 | 1536 | 1229 | |||
| 5120, 5150, 8630, 86L20, 50100 | or ≤ 40 HRc | Finish | 132 | RPM | 6980 | 5235 | 4188 | 3490 | 2617 | 2094 | 1675 | ||
| ≤ 0.02 | ≤ 2 | 1018 | Fz | 0.017 | 0.029 | 0.036 | 0.044 | 0.059 | 0.064 | 0.064 | |||
| (5-5) | Feed (mm/min) | 844 | 1063 | 1063 | 1387 | 1399 | 1474 | 1179 | |||||
| Pfil | 88 | RPM | 4686 | 3514 | 2811 | 2343 | 1757 | 1406 | 1125 | ||||
| roe | ≤ 0.05 | ≤ 1 | 71106 | Fz | 0.014 | 0.026 | 0.032 | 0.038 | 0.051 | 0.056 | 0.055 | ||
| TOOL STEELS | ≤ 375 Bhn | (-) | Feed (mm/min) | 472 | 630 | 630 | 810 | 810 | 866 | 680 | |||
| H A2, D2, H13, L2, M2, P20, S7, T15, W2 | or ≤ 40 HRc | Fiih | 106 | RPM | 5623 | 4217 | 3374 | 2811 | 2108 | 1687 | 1349 | ||
| ns | ≤ 0.02 | ≤ 2 | Fz | 0.012 | 0.020 | 0.026 | 0.031 | 0.041 | 0.045 | 0.044 | |||
| (85-127) | Feed (mm/min) | 453 | 605 | 605 | 777 | 777 | 831 | 653 | |||||
| Profile | 215 | RPM | 11391 | 8543 | 6834 | 5695 | 4271 | 3417 | 2734 | ||||
| CAST IRONS | ≤ 0.05 | ≤ 1 | Fz | 0.029 | 0.047 | 0.059 | 0.072 | 0.095 | 0.101 | 0.105 | |||
| (LOW & MEDIUM | ≤ 220 Bhn | (172-258) | Feed (mm/min) | 2296 | 2807 | 2807 | 3690 | 3641 | 3809 | 3158 | |||
| ALLOY) Gray, Malleable, | or ≤ 19 HRc | Fiih | 258 | RPM | 13669 | 10252 | 8201 | 6834 | 5126 | 4101 | 3281 | ||
| Ductile | ns | ≤ 0.02 | ≤ 2 | Fz | 0.023 | 0.038 | 0.047 | 0.058 | 0.076 | 0.081 | 0.084 | ||
| (206-309) | Feed (mm/min) | 2204 | 2695 | 2694 | 3543 | 3496 | 3657 | 3031 | |||||
| K | Profile | 165 | RPM | 8725 | 6544 | 5235 | 4362 | 3272 | 2617 | 2094 | |||
| ≤ 0.05 | ≤ 1 | (132198) | Fz | 0.022 | 0.036 | 0.045 | 0.055 | 0.074 | 0.080 | 0.080 | |||
| CAST IRONS (HIGH ALLOY) | ≤ 260 Bhn | - | Feed (mm/min) | 1319 | 1661 | 1661 | 2167 | 2186 | 2303 | 1843 | |||
| Gray, Malleable, Ductile | or ≤ 26 HRc | Finish | 198 | RPM | 10470 | 7852 | 6282 | 5235 | 3926 | 3141 | 2513 | ||
| ≤ 0.02 | ≤ 2 | Fz | 0.017 | 0.029 | 0.036 | 0.044 | 0.059 | 0.064 | 0.064 | ||||
| (158-237) | Feed (mm/min) | 1266 | 1595 | 1595 | 2080 | 2099 | 2211 | 1769 | |||||
| Profile | 171 | RPM | 9048 | 6786 | 5429 | 4524 | 3393 | 2714 | 2171 | ||||
| ≤ 0.05 | ≤ 1 | Fz | 0.022 | 0.036 | 0.045 | 0.055 | 0.074 | 0.080 | 0.080 | ||||
| STAINLESS STEELS (FREE MACHINING) | ≤ 275 Bhn | (137-205) | Feed (mm/min) | 1368 | 1723 | 1723 | 2247 | 2267 | 2389 | 1911 | |||
| M 303, 416, 420F, 430F, 440F | or ≤ 28 HRc | Finish | 137 | RPM | 7238 | 5429 | 4343 | 3619 | 2714 | 2171 | 1737 | ||
| ≤ 0.02 | ≤ 2 | Fz | 0.017 | 0.029 | 0.036 | 0.044 | 0.059 | 0.064 | 0.064 | ||||
| (109-164) | Feed (mm/min) | 875 | 1103 | 1103 | 1438 | 1451 | 1529 | 1223 |
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