Carbide tipped. Anti-kickback router bits. Computer balanced. Recoverable bead bit set produces matching profile on front and back of glass and other cabinet doors. Cuts all composition materials, plywood, hardwood, and softwoods. Use on table mounted portable routers. 1-1/2′ diameter, 25/32′ radius, 3-3/16′ length, 1/2′ shank. 1/2′ shank.