Description: Suitable for slotted, wood screw holes. Woodworking cutter designed for portable and desktop woodworking engraving machine design, can not be used in electric drill, drilling machine and the like. Build-up & Heat Resistant Coating Two Flute Carbide cutters and 8mm Shanks. Used for wood perforation, spherical door tip installation, drawer tip, plastic products, wood, plywood, etc. Specification: Material: Carbide Shank Diameter: 8 mm Opening Diameter: 9.52 mm/(3/8") Cutter Length: 10.8mm Total Length: 50mm Package Includes: 1 Piece Router Bit Note: Not applicable to copper, iron, other metal materials, sand, stone and other non-wood processing. Please allow 1-3mm error due to manual measurement, make sure that you do not mind before you bid. Due to the different monitor and light effect, the actual color may be slightly different from the picture color