Features Top Carbide Ball Bearing: Accumulation and heat resistant PTFE coating, equipped with top carbide ball bearing, used to accurately flush the edges of wood. Fast, Smooth and Accurate Trimming: The ideal flush trimming tool is for quick, smooth and accurate trimming of laminates and formwork, fully sealed and lubricated. 45# Steel + Cemented Carbide: 1/4" Shank flat end milling cutter bit is made of 45# steel + cemented carbide material, with anti-recoil design, easy to operate. Bright Colors: The trim router bit set is red and silver in shape, with bright colors, which is convenient for you to use and observe, ensuring reliable use. 4 Different Cutting Diameters: The flat end mill drill bit set is equipped with 1/4 shank, the cutting diameters are 1/4 inch, 5/16 inch, 3/8 inch, 1/2 inch, which can basically meet our use. Specification: Item Type: Flush Trim Router Bit Material: 45# steel + cemented carbide Purpose: Bearing flush trimming cutter Color: Red + silver Shank Diameter: 1/4in Cutting Diameter: 1/4in, 5/16in, 3/8in, 1/2in Package List: 4 x Flush Trim Router Bit Note: Please wear protective equipment when using to avoid injury to yourself due to splashes of debris. Package List 4 x Flush Trim Router Bit