Wet Diamond Polishing Drum Wheels are used to polish inside radius such as undermount sink holes. They are much easier than diamond polishing pads to use when polishing inside radius， while producing a high gloss. The wet diamond polishing drum wheels will also last longer than the dry diamond polishing drum. 1 in. drum wheels will fit tighter corners than 2 in. drum wheels.
Size: 1 in. outer dimension x 1-3/4 in. working depth x 3 in. total length
5/8-11 thread， the wet diamond polishing drums can fit on most polishers and variable speed grinders
Set of 7 includes 1 each of 50-grit， 100-grit， 200-grit， 400-grit， 800-grit， 1500-grit and 3000-grit
Wet use only with center water fed
Operating speed: 2000 RPM - 4500 RPM
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