REAMERS PRICELIST EFFECTIVE 9/1/24
Table 2 - Cutting Speeds - Conversion Chart:
Surface feet per minute (sfm) to Revolutions per minute (rpm)
| Cutter Diameter Inches |
Surface Feet Per Minute (sfm) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 60 | 70 | 80 | 90 | 100 | |
| 1/16 | 611 | 917 | 1222 | 1528 | 1834 | 2140 | 2445 | 2751 | 3057 | 3668 | 4280 | 4891 | 5502 | 6114 |
| 3/32 | 407 | 611 | 815 | 1019 | 1222 | 1426 | 1630 | 1834 | 2038 | 2446 | 2853 | 3261 | 3667 | 4075 |
| 1/8 | 306 | 458 | 611 | 764 | 917 | 1070 | 1222 | 1375 | 1528 | 1834 | 2139 | 2445 | 2750 | 3056 |
| 5/32 | 244 | 367 | 489 | 611 | 733 | 856 | 978 | 1100 | 1222 | 1466 | 1711 | 1955 | 2200 | 2444 |
| 3/16 | 204 | 306 | 407 | 509 | 611 | 713 | 815 | 917 | 1019 | 1222 | 1426 | 1630 | 1834 | 2038 |
| 1/4 | 153 | 229 | 306 | 382 | 458 | 535 | 611 | 688 | 764 | 917 | 1070 | 1222 | 1376 | 1528 |
| 5/16 | 122 | 183 | 244 | 306 | 367 | 428 | 489 | 550 | 611 | 733 | 856 | 978 | 1100 | 1222 |
| 3/8 | 102 | 153 | 204 | 255 | 306 | 357 | 408 | 458 | 509 | 611 | 713 | 815 | 916 | 1018 |
| 7/16 | 87 | 131 | 175 | 218 | 262 | 306 | 349 | 393 | 437 | 524 | 611 | 699 | 786 | 874 |
| 1/2 | 76 | 115 | 153 | 191 | 229 | 268 | 306 | 344 | 382 | 459 | 535 | 611 | 688 | 764 |
| 9/16 | 68 | 103 | 137 | 172 | 204 | 238 | 272 | 306 | 340 | 407 | 475 | 543 | 611 | 679 |
| 5/8 | 61 | 92 | 122 | 153 | 184 | 214 | 245 | 276 | 306 | 367 | 428 | 489 | 552 | 612 |
| 11/16 | 55 | 84 | 112 | 140 | 167 | 194 | 222 | 249 | 278 | 333 | 389 | 444 | 500 | 555 |
| 3/4 | 51 | 76 | 102 | 127 | 153 | 178 | 203 | 229 | 254 | 306 | 357 | 408 | 458 | 508 |
| 13/16 | 47 | 71 | 95 | 118 | 142 | 166 | 190 | 213 | 237 | 284 | 332 | 379 | 427 | 474 |
| 7/8 | 44 | 66 | 87 | 109 | 131 | 153 | 175 | 196 | 219 | 262 | 306 | 349 | 392 | 438 |
| 1 | 38 | 57 | 76 | 96 | 115 | 134 | 153 | 172 | 191 | 229 | 267 | 306 | 344 | 382 |
| 1-1/8 | 34 | 51 | 68 | 85 | 102 | 119 | 136 | 153 | 170 | 204 | 238 | 272 | 306 | 340 |
| 1-1/4 | 31 | 46 | 61 | 76 | 92 | 107 | 123 | 137 | 153 | 183 | 214 | 245 | 274 | 306 |
| 1-3/8 | 28 | 42 | 56 | 70 | 83 | 97 | 111 | 125 | 139 | 167 | 195 | 222 | 250 | 278 |
| 1-1/2 | 25 | 38 | 51 | 64 | 76 | 89 | 102 | 115 | 127 | 153 | 178 | 204 | 230 | 254 |
| 1-3/4 | 22 | 33 | 44 | 55 | 66 | 76 | 88 | 98 | 109 | 131 | 153 | 175 | 196 | 218 |
| 2 | 19 | 29 | 38 | 48 | 57 | 67 | 76 | 86 | 96 | 115 | 134 | 153 | 172 | 191 |
| 2-1/4 | 17 | 26 | 34 | 42 | 51 | 59 | 68 | 76 | 86 | 102 | 119 | 136 | 153 | 170 |
| 2-1/2 | 15 | 23 | 31 | 38 | 46 | 54 | 61 | 69 | 76 | 92 | 107 | 122 | 138 | 153 |
| 2-3/4 | 14 | 21 | 28 | 35 | 42 | 49 | 56 | 63 | 70 | 83 | 97 | 111 | 125 | 139 |
| 3 | 13 | 19 | 26 | 32 | 38 | 45 | 51 | 57 | 64 | 76 | 89 | 102 | 114 | 127 |
| 3-1/2 | 11 | 16 | 22 | 27 | 33 | 38 | 44 | 49 | 55 | 66 | 76 | 87 | 98 | 109 |
| 4 | 10 | 14 | 19 | 24 | 29 | 33 | 38 | 43 | 48 | 57 | 67 | 76 | 86 | 96 |
| 4-1/2 | 9 | 13 | 17 | 21 | 26 | 30 | 34 | 38 | 42 | 51 | 59 | 68 | 76 | 85 |
| 5 | 8 | 12 | 15 | 19 | 23 | 27 | 31 | 34 | 38 | 46 | 54 | 61 | 69 | 76 |
| 5-1/2 | 7 | 10 | 14 | 17 | 21 | 24 | 28 | 31 | 35 | 42 | 49 | 56 | 63 | 70 |
| 6 | 6 | 10 | 13 | 16 | 19 | 22 | 26 | 29 | 32 | 38 | 45 | 51 | 57 | 64 |
| 8 | 5 | 7 | 10 | 12 | 14 | 17 | 19 | 22 | 24 | 29 | 33 | 38 | 43 | 48 |
| 10 | 4 | 6 | 8 | 10 | 12 | 13 | 15 | 17 | 19 | 23 | 27 | 31 | 34 | 38 |
| 12 | 3 | 5 | 6 | 8 | 10 | 11 | 13 | 14 | 16 | 19 | 22 | 26 | 29 | 32 |
| 14 | 3 | 4 | 5 | 7 | 8 | 10 | 11 | 12 | 14 | 16 | 19 | 22 | 25 | 27 |
| 16 | 2 | 4 | 5 | 6 | 7 | 8 | 10 | 11 | 12 | 14 | 17 | 19 | 22 | 24 |
| 18 | 2 | 3 | 4 | 5 | 6 | 7 | 9 | 10 | 11 | 13 | 15 | 17 | 19 | 21 |
