| Metric Size(mm) |
Decimal Size* |
Feet per minute | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 50 | 60 | 70 | 80 | 90 | 100 | 125 | 150 | 175 | 200 | ||
| 1.6 | .06295 | 303 | 605 | 910 | 1210 | 1520 | 1820 | 2120 | 2430 | 3030 | 3640 | 4240 | 4850 | 5450 | 6050 | 7600 | 9100 | 10600 | 12100 |
| 2 | .07874 | 242 | 485 | 730 | 970 | 1210 | 1460 | 1700 | 1940 | 2430 | 2910 | 3400 | 3880 | 4370 | 4850 | 6050 | 7300 | 8500 | 9700 |
| 2.5 | .09843 | 194 | 388 | 580 | 775 | 970 | 1160 | 1360 | 1550 | 1940 | 2330 | 2720 | 3100 | 3496 | 3880 | 4856 | 5800 | 6800 | 7750 |
| 3 | .11611 | 162 | 323 | 485 | 645 | 810 | 970 | 1130 | 1290 | 1620 | 1940 | 2260 | 2590 | 2910 | 3230 | 4046 | 4850 | 5650 | 6450 |
| 3.5 | .13780 | 138 | 277 | 416 | 555 | 695 | 830 | 970 | 1110 | 1390 | 1660 | 1940 | 2220 | 2490 | 2770 | 3460 | 4160 | 4850 | 5540 |
| 4 | .15748 | 121 | 242 | 364 | 485 | 605 | 730 | 850 | 970 | 1210 | 1450 | 1700 | 1940 | 2180 | 2430 | 3030 | 3640 | 4240 | 4850 |
| 4.5 | .17717 | 108 | 216 | 323 | 431 | 540 | 645 | 755 | 860 | 1080 | 1290 | 1510 | 1720 | 1940 | 2160 | 2690 | 3230 | 3770 | 4310 |
| 5 | .19685 | 97 | 194 | 291 | 388 | 485 | 580 | 680 | 775 | 970 | 1160 | 1360 | 1550 | 1750 | 1940 | 2430 | 2910 | 3400 | 3880 |
| 6 | .23622 | 80 | 162 | 242 | 323 | 404 | 485 | 565 | 645 | 810 | 970 | 1130 | 1290 | 1450 | 1620 | 2020 | 2430 | 2830 | 3230 |
| 7 | .27559 | 69 | 138 | 208 | 277 | 346 | 416 | 485 | 553 | 695 | 830 | 970 | 1110 | 1250 | 1390 | 1730 | 2080 | 2430 | 2770 |
| 8 | .31496 | 60 | 121 | 182 | 242 | 303 | 364 | 424 | 485 | 605 | 730 | 850 | 970 | 1090 | 1210 | 1520 | 1820 | 2120 | 2430 |
| 10 | .39370 | 48 | 97 | 146 | 194 | 242 | 291 | 340 | 388 | 485 | 580 | 680 | 775 | 875 | 970 | 1210 | 1400 | 1700 | 1940 |
| 12 | .47244 | 40 | 80 | 121 | 162 | 202 | 242 | 263 | 323 | 404 | 485 | 565 | 645 | 730 | 810 | 1010 | 1210 | 1410 | 1620 |
| 14 | .55116 | 35 | 69 | 104 | 139 | 173 | 208 | 242 | 277 | 346 | 416 | 485 | 555 | 625 | 695 | 865 | 1040 | 1210 | 1390 |
| 16 | .62992 | 30 | 61 | 91 | 121 | 152 | 182 | 212 | 242 | 303 | 364 | 424 | 485 | 545 | 605 | 760 | 910 | 1060 | 1210 |
| 20 | .78740 | 24 | 48 | 73 | 97 | 121 | 146 | 170 | 194 | 242 | 291 | 340 | 386 | 436 | 485 | 605 | 730 | 850 | 970 |
| 24 | .94488 | 20 | 40 | 61 | 81 | 101 | 121 | 141 | 162 | 202 | 242 | 283 | 323 | 364 | 404 | 505 | 605 | 705 | 810 |
| 30 | 1.18110 | 16 | 32 | 48 | 65 | 81 | 97 | 113 | 129 | 162 | 194 | 226 | 259 | 291 | 323 | 464 | 485 | 565 | 645 |
| 36 | 1.41732 | 13 | 27 | 40 | 54 | 67 | 81 | 94 | 108 | 135 | 162 | 189 | 216 | 242 | 270 | 337 | 404 | 472 | 540 |
