Unitized Wheel, Abrasive Material Silicon Carbide, Density Rating Soft (2), Grade Fine, Series XL-UW, Face Width 1/4 in, Maximum Operating Speed 20,100 RPM, Overall Diameter 1 1/2 in, Connector Size 3/16 in, Connector Type Unthreaded Hole, Quick Change System Not Applicable, Abrasive Type Non-Woven, Color Gray, Grit N/A Unavailable, Resistance Properties Load