Unitized Wheel, Abrasive Material Aluminum Oxide, Density Rating Soft (2), Grade Medium, Series XL-UW, Face Width 1 in, Maximum Operating Speed 3,500 RPM, Overall Diameter 8 in, Connector Size 3/4 in, Connector Type Unthreaded Hole, Quick Change System Not Applicable, Abrasive Type Non-Woven, Color Gray, Resistance Properties Load, Smear