3Pcs set 1/4in Shank Woodworking Frame Door Rail & Stile Cove Raised Panel Router Bit Features: This router bit is made of cemented carbide for high hardness and long service life. Yellow heat resistant coating prevents build-up of sawdust and resin. Sharp cutting edge would improve working efficiency and product quality. Usually used on electric wood routers or engraving machines to cut rabbet, profile for tenon jointing. It can be used for processing a wide range of materials including hard wood, soft wood, composite wood board. Specification: Material: Cemented carbide Shank Diameter: 1/4in Cutting Edge Size: As picture Processing Thickness: 20~25.4mm / 0.79~1in Weight: 416g / 14.7oz (approx.) Package list: 3 * Router Bits 2 * Washers