Item Type: Corner Bead Router Bit Material: Tungsten Steel Alloy Product Specification: 1/4xR3, without bearings. Package List 1 x Corner Bead Router Bit 1 x Plastic Box 1Good Coating: The coating of the main body can better remove chips and reduce friction. To prevent the accumulation of wood chips, resin, and asphalt, the cutting material should not have burrs. Efficient cutting, and smoother rotation, fast operation, and high hardness. 2Better Cutting: The blue coating with high hardness and heat resistance enables the cutting edge of the tool to maintain sharpness and lubricity. This can extend the service life and produce the highest quality cutting results. 3Wide Application: The corner bead router bit is very suitable for wood, MDF, particle board, plywood and other compact panels. 4Sturdy Design: sturdy tungsten steel alloy casing with no backlash design. The quality of tungsten carbide tip can improve strength and maximum strength. Good wear resistance and long service life. 5Reliable Work: The main functions of the handle flat end milling cutter are cutting, trimming, and slotting. The non backlash design of the blade is incisive and smooth, suitable for edge trimming, and slotting.