General description 6pcs cleaning bottom router bits with 8mm shank, designed for precision woodworking. These bits are ideal for cutting various materials including composite materials, plywood, hardwoods, and softwoods. Technical specifications Shank size: 8mm Bit sizes: 8*18mm, 8*20mm, 8*22mm, 8*25mm, 8*30mm, 8*32mm Material: Solid hardened steel with C3 micro grain tungsten carbide cutter Coating: Heat resistant Teflon Other information Features: Anti-kickback design, anti-buildup, double edge cutting design, excellent concentricity Package includes: 6 x Cleaning Bottom Router Bits