1、Fine Coating: The blue coating with high hardness and heat resistance enables the cutting edge of the tool to maintain good sharpness and lubricity. This can extend the service life and produce the best cutting results. 2、Stable Working: The coating of the router bit 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. Quick cutting, smooth rotation, fast operation, and high hardness. 3、Sturdy Design: Sturdy tungsten steel alloy shell with no backlash design. The quality of tungsten carbide tip particles can improve strength and maximum strength. Good wear resistance and long service life. 4、Smart Cutting: The main functions of a 1/4 handle flat end milling cutter are cutting, sag angle, and slotting. The non backlash design of the blade is incisive and smooth, suitable for edge trimming, free angle, and slitting. 5、Wide Application: Suitable for wood, MDF, particle board, plywood and other compact panels, and the wide application will meet your needs. 4 x Flush Trim Router Bit4 x Plastic Box Item Type: Flush Trim Router BitMaterial: Tungsten Steel AlloyProduct Specification: 1/4 x 1/4 x 30, 1/4 x 1/2 x 30, 1/4 x 5/16 x 30, 1/4 x 3/8 x 30.