Description: Hard Alloy Flute Straight bit router -5pcs/set Easy and simple to use Kit, suitable for all the 1 / 4 "Collet. Use widely ,can cut all the composition Materials, composite Wood, hardwoods/softwoods. Use hand-held or Table Mounted Milling Machines Materials: Carbide Specification: 1/4'' Shank Cutter Diameter: 1/4'',3/8'',3/4'',5/8'',1/2'' Package Includes: 5Pieces Router Bits