Stone Boss Premium Wet/Dry Diamond Bits for Extended Life on Granite, Marble and Stone, Sizes 1/2" - 4" with 5/8" Threaded Arbor

Premium quality for fast penetration speeds with long life on granite, marble, engineered stone, onyx, terrazzo, masonry, concrete, and all similar materials. Features strong laser-welded segments with heat-treated steel cores designed to withstand the demands of dry drilling.

• May be used for wet or dry drilling.
• Use with low-speed drills or variable-speed grinders and polishers (500-2,500 RPM).
• Features 5/8" threaded arbor with wrench flats for easy on/easy off operation.