Adapter Flange Abrasive Mounting Connector Size 1 in Abrasive Mounting Connector Type Unthreaded Hole Tool Mounting Connector Size 1/2 in Tool Mounting Connector Type Threaded Shank Overall Length 1 1/2 in Product Type Flange Outside Flange Diameter 1 1/2 in Compatible Wheel Diameter (Maximum) 10 in Compatible Wheel Diameter (Minimum) 3 in Compatible Wheel Thickness (Maximum) 1 in Compatible Wheel Thickness (Minimum) 1/4 in