Unitized Wheel Mandrel Abrasive Mounting Connector Size 1/2 in Abrasive Mounting Connector Type Unthreaded Hole Tool Mounting Connector Size 1/4 in Tool Mounting Connector Type Straight Shank Overall Length 3 1/8 in Product Type Unitized Wheel Mandrel Outside Flange Diameter 1 5/8 in Compatible Wheel Diameter (Maximum) 6 in Compatible Wheel Diameter (Minimum) 3 in Compatible Wheel Thickness (Maximum) 1 in Compatible Wheel Thickness (Minimum) Not Applicable