1、Excellent Carbide Material: This cut spiral router bit is made of excellent carbide material, with high hardness, wear resistant and durable, no need to replace it for long time use. 2、Bearing Design: This carbide compression flush trim router bit is designed with bearings to reduce friction and improve smoothness and speed of operation. 3、1/2 Shank Design: This compression flush trim router bit features a 1/2 shank design that fits a wide range of woodworking mills for quick and easy setup and take down. 4、Efficient And Accurate: This spiral flush trim router bit can help woodworkers to easily realize the trimming process of wood products and enhance the production efficiency. 5、Wide Application: This composite trim router bit has a wide range of applications, which can be used for woodworking, furniture processing, handcrafting, DIY and so on. Item Type: Composite Trim Router Bit Material: Cemented Carbide Size: Diameter: Approx. 12mm/0.47in Flute Length: Approx. 1-5/8in Total Length: Approx. 4-7/32in 1 x 1/2 Shank Composite Trim Router Bit