Bit Speed Guidelines - US Granite Standards

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Wednesday, March 10 2010 @ 04:56 PM EST

Diamond Core Bit Speed Guidelines

Wet Bit Diameter		Max/Min RPM*
1" - 2"	(25mm - 51mm)	1,200 - 1,000
2-1/4 " - 5"	(57mm - 127mm)	1,000 - 500
5-1/4" - 12"	(134mm - 305mm)	500 - 250
Dry Bit Diameter		Max/Min RPM*
1" - 1-1/2"	(25mm - 38mm)	6000 - 2300
1-3/4"	(44mm)	5000 - 1600
2" - 2-1/4"	(51mm - 57mm)	5000 - 1200
2-1/2"	(64mm)	5000 - 800
3" - 5"	(76mm - 127mm)	5000 - 700
6"	(152mm)	5000 - 600

* Based upon the Optimum Performance Speed
calibrated in Surface feet per Minute (SFM).

Last Updated Thursday, September 17 2009 @ 06:45 AM EDT|169 Hits

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