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Technical Library

Diamond Blade Speed Guidelines
Diameter Recommended
RPM*
Never Exceed
RPM
4" (102mm) 9,000 15,200
4-1/2" (114mm) 8,000 13,500
5" (127mm) 7,200 12,200
5-1/2" (140mm) 6,500 11,090
6" (152mm) 6,000 10,185
7" (178mm) 5,100 8,730
8" (203mm) 4,500 7,640
9" (229mm) 4,000 6,700
10" (254mm) 3,600 6,115
12" (305mm) 3,000 5,095
12" (High Speed Blades) 6,300
14" (356mm) 2,500 4,365
14" (High Speed Blades) 5,460
16" (406mm) 2,200 3,800
18" (457mm) 2,000 3,300
20" (508mm) 1,800 3,000
22" (559mm) 1,600 2,780
24" (610mm) 1,500 2,550
26" (660mm) 1,300 2,350
28" (711mm) 1,200 2,185
30" (762mm) 1,200 2,040
32" (813mm) 1,100 1,910
36" (914mm) 1,000 1,700
42" (1067mm) 800 1,455
48" (1219mm) 700 1,275
* Recommended RPM based on 9,500 SFPM

Lapidary Blade Speed Recommendations
Blade Diameter RPM
4" (102mm) 4300 - 5730
5" (127mm) 3440 - 4580
6" (152mm) 2870 - 3820
7" (178mm) 2460 - 3270
8" (203mm) 2150 - 2870
9" (229mm) 1910 - 2550
10" (254mm) 1720 - 2290
12" (305mm) 1430 - 1910
14" (356mm) 1230 - 1640
16" (406mm) 1070 - 1430
18" (457mm) 960 - 1270
20" (508mm) 860 - 1150
24" (610mm) 720 - 960
30" (762mm) 570 - 760
36" (914mm) 480 - 640



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Customer Service: (800) 421-5830 CustomerService@mkdiamond.com
Product specifications are subject to change without notice.