
| Series 66, 66CR | Ae | Ap Ae | Vc | D | iameter ( (inch) | D1) | |||||||
| Fractional | Hardness | Ae x D1 | Ap x D1 | (sfm) | 3/16 | 1/4 | 3/8 | 1/2 | 5/8 | 3/4 | 1 | ||
| Profile | 385 | RPM | 7844 | 5883 | 3922 | 2941 | 2353 | 1961 | 1471 | ||||
| ≤ 0.05 | ≤ 1 | (308462) | Fz | 0.0005 | 0.0007 | 0.0014 | 0.0018 | 0.0023 | 0.0024 | 0.0026 | |||
| STAINLESS STEELS (DIFFICULT) | ≤ 275 Bhn | - | Feed (ipm) | 27.5 | 28.8 | 38.4 | 47.7 | 48.7 | 51.8 | 42.1 | |||
| 304, 304L, 316, 316L | or ≤ 28 HRc | Finish | 462 | RPM | 9412 | 7059 | 4706 | 3530 | 2824 | 2353 | 1765 | ||
| ≤ 0.02 | ≤ 2 | (370-554) | Fz | 0.0004 | 0.0006 | 0.0011 | 0.0014 | 0.0018 | 0.0019 | 0.0021 | |||
| M | Feed (ipm) | 26.4 | 27.7 | 36.9 | 45.7 | 46.8 | 49.7 | 40.4 | |||||
| Pfil | 355 | RPM | 7233 | 5424 | 3616 | 2712 | 2170 | 1808 | 1356 | ||||
| roe | ≤ 0.05 | ≤ 1 | Fz | 0.0005 | 0.0007 | 0.0014 | 0.0018 | 0.0023 | 0.0024 | 0.0026 | |||
| STAINLESS STEELS (PH) | ≤ 325 Bhn | (284-426) | Feed (ipm) | 25.3 | 26.6 | 35.4 | 43.9 | 44.9 | 47.7 | 38.8 | |||
| 13-8 PH, 15-5 PH, 17-4 PH, Custom 450 | or ≤ 35 HRc | Finish | 426 | RPM | 8679 | 6509 | 4340 | 3255 | 2604 | 2170 | 1627 | ||
| ≤ 0.02 | ≤ 2 | (341511) | Fz | 0.0004 | 0.0006 | 0.0011 | 0.0014 | 0.0018 | 0.0019 | 0.0021 | |||
| - | Feed (ipm) | 24.3 | 25.5 | 34.0 | 42.2 | 43.1 | 45.8 | 37.2 | |||||
| Pfil | 105 | RPM | 2139 | 1604 | 1070 | 802 | 642 | 535 | 401 | ||||
| SUPER ALLOYS | roe | ≤ 0.05 | ≤ 1 | Fz | 0.0005 | 0.0007 | 0.0014 | 0.0018 | 0.0023 | 0.0024 | 0.0026 | ||
| (NICKEL, COBALT, IRON BASE | ≤ 300 Bhn | (84-126) | Feed (ipm) | 7.5 | 7.9 | 10.5 | 13.0 | 13.3 | 14.1 | 11.5 | |||
| ) Inconel 601, 617, 625, | or ≤ 32 HRc | Fiih | 126 | RPM | 2567 | 1925 | 1284 | 963 | 770 | 642 | 481 | ||
| Incoloy, Monel 400 | ns | ≤ 0.02 | ≤ 2 | Fz | 0.0004 | 0.0006 | 0.0011 | 0.0014 | 0.0018 | 0.0019 | 0.0021 | ||
| (101-151) | Feed (ipm) | 7.2 | 7.5 | 10.1 | 12.5 | 12.8 | 13.6 | 11.0 | |||||
| Profile | 85 | RPM | 1732 | 1299 | 866 | 649 | 520 | 433 | 325 | ||||
| SUPER ALLOYS | ≤ 0.05 | ≤ 1 | Fz | 0.0003 | 0.0005 | 0.0009 | 0.0011 | 0.0014 | 0.0015 | 0.0016 | |||
| (NICKEL, COBALT, IRON BASE) | ≤ 400 Bhn | (68-102) | Feed (ipm) | 3.6 | 4.5 | 5.5 | 6.4 | 6.5 | 7.1 | 5.7 | |||
| Inconel 718, X-750, Incoloy Waspaloy | or ≤ 43 HRc | 102 | RPM | 2078 | 1559 | 1039 | 779 | 623 | 520 | 390 | |||
| , , Hastelloy, Rene | Finish | ≤ 0.02 | ≤ 2 | Fz | 0.0002 | 0.0004 | 0.0007 | 0.0009 | 0.0011 | 0.0012 | 0.0013 | ||
| (82-122) | Feed (ipm) | 3.5 | 4.4 | 5.2 | 6.2 | 6.3 | 6.9 | 5.5 | |||||
| S | Pfil | 390 | RPM | 7946 | 5959 | 3973 | 2980 | 2384 | 1986 | 1490 | |||
| TITANIUM ALLOYS | roe | ≤ 0.05 | ≤ 1 | (312-468) | Fz | 0.0005 | 0.0008 | 0.0015 | 0.0021 | 0.0026 | 0.0027 | 0.0029 | |
| Pure Titanium, Ti6Al4V | ≤ 350 Bhn | Feed (ipm) | 27.8 | 33.4 | 41.7 | 56.3 | 55.8 | 59.0 | 47.5 | ||||
| , Ti6Al2Sn4Zr2Mo, | or ≤ 38 HRc | Finish | 468 | RPM | 9535 | 7151 | 4767 | 3576 | 2860 | 2384 | 1788 | ||
| Ti4Al4Mo2Sn0.5Si | ≤ 0.02 | ≤ 2 | Fz | 0.0004 | 0.0006 | 0.0012 | 0.0017 | 0.0021 | 0.0022 | 0.0023 | |||
| (374-562) | Feed (ipm) | 26.7 | 32.0 | 40.0 | 54.1 | 53.5 | 56.6 | 45.6 | |||||
| Profile | 140 | RPM | 2852 | 2139 | 1426 | 1070 | 856 | 713 | 535 | ||||
| TITANIUM ALLOYS (DIFFICULT) | ≤ 0.05 | ≤ 1 | Fz | 0.0005 | 0.0008 | 0.0015 | 0.0021 | 0.0026 | 0.0027 | 0.0029 | |||
| Ti10Al2Fe3Al, Ti5Al5V5Mo3Cr, | ≤ 440 Bhn | (112-168) | Feed (ipm) | 10.0 | 12.0 | 15.0 | 20.2 | 20.0 | 21.2 | 17.1 | |||
| Ti7Al4Mo, Ti3Al8V6Cr4Zr4Mo, | or ≤ 47 HRc | Finish | 168 | RPM | 3423 | 2567 | 1711 | 1284 | 1027 | 856 | 642 | ||
| Ti6Al6V6Sn, Ti15V3 Cr3Sn3Al | ≤ 0.02 | ≤ 2 | Fz | 0.0004 | 0.0006 | 0.0012 | 0.0017 | 0.0021 | 0.0022 | 0.0023 | |||
| (134-202) | Feed (ipm) | 9.6 | 11.5 | 14.4 | 19.4 | 19.2 | 20.3 | 16.4 |
Bhn (Brinell) HRc (Rockwell C) rpm = Vc x 3.82 / D 1 ipm = Fz x number of flutes x rpm reduce speed and feed for materials harder than listed