Item Type: Flush Trim Router Bit_x000D_ Material: Main Body: Carbon steel, Bit: Alloy_x000D_ Specification: _x000D_ Shank Diameter: 1/4in_x000D_ Blade Diameter: 1/2in 1For Composite Materials: Pattern bit is very suitable for making wall skirt grooves and all types of straight cut work on all composite materials, plywood, hardwood and softwood 2Suitable For Planer: Super long straight planer drill bit is suitable for CNC, handheld and desktop portable planer, very practical 3High Accuracy: The straight hard handle is durable and wear resistant. The alloy blade adopts high grade welding, with high cutting accuracy and good finish 4Of Sharpness And Durable: Alloy cutter head with heat resistant coating, possess long lasting performance, of sharpness and durable, accurate balance and smooth operation 5With Storage Box: 1/4in shank diameter with 1/2in blade diameter, equipped with storage box, convenient for you to use, carry and store 4 x Flush Trim Router Bit 4 x Storage Box