Item Type: Squares Tooth Tenon Router Bit_x000D_ Material: Main Body Carbon Steel + Bit Alloy_x000D_ Shank Diameter: 8mm_x000D_ Cutter Head Diameter: Approx. 28.6mm / 1-1/8in_x000D_ Blade Depth: Approx. 20mm / 0.80in, 22.2mm / 0.87in 1Main Application: This is a squares tooth tenon and tenon knife for making tongue and grooves joints for wooden floors. 2PTFE Coating: Heat resistant PTFE coating can prevent the accumulation of sawdust, resin and asphalt. 3Pointed Blade: This squares tooth tenon knife adopts pointed blade, which cuts smoothly and has non burrs. 4Application: Squares teeth tenon knives are used for cutting plywood, wood, etc., only for Router workbench. 5Basic Specifications: The cutter head is made of alloy, the shank diameter is 8mm, and the cutter head diameter is 1-1/8in. 2 x Milling Cutter 2 x Storage Box