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| Lapidary Blade Speed Recommendations |
| Blade |
MK-297 |
MK-301 |
MK-1000 |
MK-303 |
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Recommended RPM Operating Range
in Surface Feet Per Minute |
|
3000 - 3500 |
3000 - 4500 |
4500 - 6000 |
4500 - 6000 |
| Blade Diameter |
Approximate Arbor Shaft RPM Range |
| 4" (102mm) |
2860 - 3340 |
2860 - 4300 |
4300 - 5730 |
4300 - 5730 |
| 5" (127mm) |
2290 - 2670 |
2290 - 3440 |
3440 - 4580 |
3440 - 4580 |
| 6" (152mm) |
1910 - 2230 |
1910 - 2870 |
2870 - 3820 |
2870 - 3820 |
| 7" (178mm) |
1640 - 1910 |
1640 - 2460 |
2460 - 3270 |
2460 - 3270 |
| 8" (203mm) |
1430 - 1670 |
1430 - 2150 |
2150 - 2870 |
2150 - 2870 |
| 9" (229mm) |
1270 - 1490 |
1270 - 1910 |
1910 - 2550 |
1910 - 2550 |
| 10" (254mm) |
1150 - 1340 |
1150 - 1720 |
1720 - 2290 |
1720 - 2290 |
| 12" (305mm) |
960 - 1110 |
960 - 1430 |
1430 - 1910 |
1430 - 1910 |
| 14" (356mm) |
820 - 960 |
820 - 1230 |
1230 - 1640 |
1230 - 1640 |
| 16" (406mm) |
720 - 840 |
720 - 1070 |
1070 - 1430 |
1070 - 1430 |
| 18" (457mm) |
640 - 740 |
640 - 960 |
960 - 1270 |
960 - 1270 |
| 20" (508mm) |
570 - 670 |
570 - 860 |
860 - 1150 |
860 - 1150 |
| 24" (610mm) |
480 - 560 |
480 - 720 |
720 - 960 |
720 - 960 |
| 30" (762mm) |
380 - 450 |
380 - 570 |
570 - 760 |
570 - 760 |
| 36" (914mm) |
320 - 370 |
320 - 480 |
480 - 640 |
480 - 640 |
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