Cutting Speeds

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Cutting Speeds Conversion Table

Diameter
Feet Per Minute
More...
   10 15 20 25 30 40 50 70 100
Inches M/M's 3 4.5 6 7.5 9 12 15 21 30
1/16 1.6 611 916 1222 1527 1833 2445 3056 4278 6112
2 485 728 970 1212 1455 1941 2426 3397 4853
3/32 2.5 407 611 815 1017 1222 1630 2037 2852 4075
1/8 3 306 458 611 765 917 1222 1528 2139 3056
3.5 277 415 554 692 831 1108 1386 1940 2772
5/32 4 244 367 489 610 733 978 1222 1711 2445
4.5 222 333 444 555 666 889 1111 1555 2222
3/16 5 204 306 407 510 611 815 1019 1426 2037
1/4 6 153 229 306 382 458 611 764 1070 1528
7 139 209 278 347 417 554 693 970 1386
5/16 8 122 183 244 305 367 489 611 856 1222
3/8 10 102 153 204 255 306 407 509 713 1019
Jul-16 11 87 131 175 217 262 349 437 611 873
01-Feb 12 76 115 153 190 229 306 382 535 764
Sep-16 14 68 102 134 170 204 272 340 475 679
05-Aug 16 61 91 122 152 183 245 306 428 611
Nov-16 18 54 81 108 135 162 216 270 377 539
03-Apr 19 51 77 102 127 153 204 255 357 509
13/16 20 49 73 98 123 147 194 243 339 485
07-Aug 22 44 65 87 110 131 175 218 306 437
15/16 24 40 60 80 100 120 162 202 283 404
1 25 38 58 76 95 115 153 191 267 382
1.1/16 27 36 54 72 90 108 144 180 251 359
1.3/16 30 32 48 64 80 96 129 162 227 324
1.1/4 32 31 46 61 78 92 122 153 214 306
1.5/16 33 29 44 58 73 87 118 147 206 294
1.3/8 35 28 41 56 70 83 111 139 222 278
1.7/16 36 27 40 54 68 81 108 135 189 270
1.1/2 38 25 38 51 63 76 102 127 178 255
1.9/16 39 24 36 48 60 72 100 120 168 240
1.5/8 42 24 35 47 58 71 94 118 165 235
1.3/4 45 22 33 44 55 65 87 109 153 218
1.7/8 48 20 31 41 50 61 82 102 143 204
2 52 19 29 38 48 57 76 96 134 191

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