Nut Lock-Type Wheel Adapter, Abrasive Mounting Connector Size 3/8 In.-24, Abrasive Mounting Connector Type Threaded Hole, Tool Mounting Connector Size 1/4 in, Tool Mounting Connector Type Straight Shank, Overall Length 2 9/16 in, Product Type Nut Lock-Type Wheel Adapter, Outside Flange Diameter 1 in, Compatible Wheel Thickness (Maximum) 5/8 in Shank Dia. (In.): 1/4 in;Length (In.): 2 9/16 in;Max. Wheel Width (In.): 5/8 in;Overall Length: 2 9/16 in;Outside Flange Diameter: 1 in;Compatible Wheel Arbor Hole Size: 3/8 in;Tool Mounting Connector Size: 1/4 in;Abrasive Mounting Connector Size: 3/8"-24; Item: Nut Lock-Type Wheel Adapter;Fits Hole (In.): 3/8;Washer O.D. (In.): 1 in;Includes: Arbor, Hex Nut, Pair of Machined Steel Washer;Product Type: Nut Lock-Type Wheel Adapter;Abrasive Mounting Connector Type: Threaded Hole;Compatible Wheel Thickness (Maximum): 5/8 in;Compatible Abrasive Type: Buffing Wheels, Cut-Off Wheels, Surface-Conditioning Discs, Unitized Wheels, Wire Wheel Brushes;Tool Connection: 1/4 in Straight Shank;Compatible Wheel Thickness: 5/8 in;Tool Mounting Connector Type: Straight Shank;