?High Quality Router Bit?:Solid hardened steel body with anti-kickback design. Made of cemented carbide and long-lasting performance. ?Adjustable Bearings?:Interchangeable bearings to cut rabbets of 6 different depths: 1/8, 1/4, 5/16, 3/8, 7/16 and 1/2 inch. ?Heat Resistant?:Industrial quality router bit, build-up and heat resistant teflon coating. ?Widely Used?:Suitable for rabbet of different size on wood and wood composites. Including MDF, solid wood, particle board, plywood, etc. ?Application?:Used on hand-held and table-mounted portable routers for wood edge finishing. Specifications: Material:Cemented Carbide Shank diameter: 1/4inch/6.35mm Bearing Diameter:1-1/8"; 7/8"; 3/4"; 5/8"; 1/2"; 3/8" Woodworking Depths: 1/8, 1/4, 5/16, 3/8, 7/16 and 1/2 inch. Package included: 1 x Rabbet Router Bit 1 x Bearings Bit 1 x Wrench Warm tips: The cutter is sharp, so please get away from children. At the trepanning, please wear good protective measures in case of wood chips splash damage eyes.