Unitized Wheel, Abrasive Material Silicon Carbide, Density Rating Soft (3), Grade Fine, Series XL-UW, Face Width 1/4 in, Maximum Operating Speed 6,000 RPM, Overall Diameter 5 in, Connector Size 1/4 in, Connector Type Unthreaded Hole, Quick Change System Not Applicable, Abrasive Type Non-Woven, Color Gray, Resistance Properties Load, Smear