
| Series 135 5D | Vc | Diameter (D (inch) | 1) | |||||||
| Fractional | Hardness | (sfm) | 1/32 | 1/8 | 1/4 | 3/8 | 1/2 | 5/8 | 7/8 | |
| ≤ 175 Bhn | 345 | RPM | 42173 | 10543 | 5272 | 3514 | 2636 | 2109 | 1506 | |
| or | (276-414) | Fr | 0.0010 | 0.0040 | 0.0080 | 0.0120 | 0.0159 | 0.0199 | 0.0279 | |
| ≤ 7 HRc | Feed (ipm) | 42.0 | 42.0 | 42.0 | 42.0 | 42.0 | 42.0 | 42.0 | ||
| CARBON STEELS | ≤ 275 Bhn | 310 | RPM | 37894 | 9474 | 4737 | 3158 | 2368 | 1895 | 1353 |
| 1018, 1040, 1080, 1090, 10L50, | or | Fr | 0.0009 | 0.0036 | 0.0072 | 0.0108 | 0.0144 | 0.0179 | 0.0251 | |
| 1140, 1212, 12L15, 1525, 1536 | ≤ 28 HRc | (248-372) | Feed (ipm) | 34.0 | 34.0 | 34.0 | 34.0 | 34.0 | 34.0 | 34.0 |
| ≤ 425 Bhn | 180 | RPM | 22003 | 5501 | 2750 | 1834 | 1375 | 1100 | 786 | |
| or | 144216 | Fr | 0.0007 | 0.0030 | 0.0060 | 0.0090 | 0.0120 | 0.0150 | 0.0210 | |
| ≤ 45 HRc | (-) | Feed (ipm) | 16.5 | 16.5 | 16.5 | 16.5 | 16.5 | 16.5 | 16.5 | |
| P | ≤ 275 Bhn | 270 | RPM | 33005 | 8251 | 4126 | 2750 | 2063 | 1650 | 1179 |
| or | Fr | 0.0008 | 0.0030 | 0.0061 | 0.0091 | 0.0121 | 0.0151 | 0.0212 | ||
| ≤ 28 HRc | (216-324) | Feed (ipm) | 25.0 | 25.0 | 25.0 | 25.0 | 25.0 | 25.0 | 25.0 | |
| ALLOY STEELS | ≤ 375 Bhn | 165 | RPM | 20170 | 5042 | 2521 | 1681 | 1261 | 1008 | 720 |
| 4140, 4150, 4320, 5120, | or | 132198 | Fr | 0.0006 | 0.0026 | 0.0052 | 0.0077 | 0.0103 | 0.0129 | 0.0180 |
| 5150, 8630, 86L20, 50100 | ≤ 40 HRc | (-) | Feed (ipm) | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 |
| ≤ 450 Bhn | 115 | RPM | 14058 | 3514 | 1757 | 1171 | 879 | 703 | 502 | |
| or | Fr | 0.0004 | 0.0018 | 0.0035 | 0.0053 | 0.0071 | 0.0088 | 0.0123 | ||
| ≤ 48 HRc | (92-138) | Feed (ipm) | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | |
| ≤ 200 Bhn | 120 | RPM | 14669 | 3667 | 1834 | 1222 | 917 | 733 | 524 | |
| or | (96-144) | Fr | 0.0006 | 0.0026 | 0.0051 | 0.0077 | 0.0103 | 0.0128 | 0.0179 | |
| ≤ 13 HRc | Feed (ipm) | 9.4 | 9.4 | 9.4 | 9.4 | 9.4 | 9.4 | 9.4 | ||
| TOOL STEELS | ≤ 375 Bhn | 80 | RPM | 9779 | 2445 | 1222 | 815 | 611 | 489 | 349 |
| H A2, D2, H13, L2, M2, | or | Fr | 0.0003 | 0.0012 | 0.0024 | 0.0036 | 0.0047 | 0.0059 | 0.0083 | |
| P20, S7, T15, W2 | ≤ 40 HRc | (64-96) | Feed (ipm) | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 |
| 70 | RPM | 8557 | 2139 | 1070 | 713 | 535 | 428 | 306 | ||
| ≤ 475 Bhn or | (56-84) | Fr | 0.0002 | 0.0008 | 0.0016 | 0.0024 | 0.0032 | 0.0040 | 0.0056 | |
| ≤ 50 HRc | Feed (ipm) | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | ||
| ≤ 220 Bhn | 300 | RPM | 36672 | 9168 | 4584 | 3056 | 2292 | 1834 | 1310 | |
| or | (240-360) | Fr | 0.0011 | 0.0045 | 0.0089 | 0.0134 | 0.0179 | 0.0224 | 0.0313 | |
| CAST IRONS | ≤ 19 HRc | Feed (ipm) | 41.0 | 41.0 | 41.0 | 41.0 | 41.0 | 41.0 | 41.0 | |
| K Gray, Malleable, Ductile | ≤ 260 Bhn | 265 | RPM | 32394 | 8098 | 4049 | 2699 | 2025 | 1620 | 1157 |
| or | (212318) | Fr | 0.0011 | 0.0046 | 0.0091 | 0.0137 | 0.0183 | 0.0228 | 0.0320 | |
| ≤ 26 HRc | - | Feed (ipm) | 37.0 | 37.0 | 37.0 | 37.0 | 37.0 | 37.0 | 37.0 | |
| 185 Bh | 250 | RPM | 30560 | 7640 | 3820 | 2547 | 1910 | 1528 | 1091 | |
| ≤ n or | 200300 | Fr | 0.0006 | 0.0026 | 0.0051 | 0.0077 | 0.0102 | 0.0128 | 0.0179 | |
| STAINLESS STEELS (FREE MACHINING) | ≤ 9 HRc | (-) | Feed (ipm) | 19.5 | 19.5 | 19.5 | 19.5 | 19.5 | 19.5 | 19.5 |
| 303, 416, 420F, 430F, 440F | ≤ 275 Bhn | 150 | RPM | 18336 | 4584 | 2292 | 1528 | 1146 | 917 | 655 |
| or | Fr | 0.0005 | 0.0020 | 0.0039 | 0.0059 | 0.0079 | 0.0098 | 0.0137 | ||
| ≤ 28 HRc | (120-180) | Feed (ipm) | 9.0 | 9.0 | 9.0 | 9.0 | 9.0 | 9.0 | 9.0 | |
| M | ≤ 275 Bhn | 80 | RPM | 9779 | 2445 | 1222 | 815 | 611 | 489 | 349 |
| or | Fr | 0.0005 | 0.0020 | 0.0039 | 0.0059 | 0.0079 | 0.0098 | 0.0137 | ||
| STAINLESS STEELS (DIFFICULT) | ≤ 28 HRc | (64-96) | Feed (ipm) | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 |
| 304, 316, 321, 13-8 PH, 15-5PH, 17-4 PH, Custom 450 | ≤ 375 Bhn | 55 | RPM | 6723 | 1681 | 840 | 560 | 420 | 336 | 240 |
| or | Fr | 0.0004 | 0.0018 | 0.0036 | 0.0054 | 0.0071 | 0.0089 | 0.0125 | ||
| ≤ 40 HRc | (44-66) | Feed (ipm) | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 |
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