Unitized Wheel Abrasive Material Silicon Carbide Density Rating Soft (2) Grade Fine Series Bear-Tex Rapid Blend NEX Face Width 1 in Maximum Operating Speed 18 000 RPM Overall Diameter 1 in Connector Size 3/16 in Connector Type Unthreaded Hole Quick Change System Not Applicable Abrasive Type Non-Woven Color Gray Resistance Properties Smear Package Quantity 50