Freud Straight Router Bit 12 544 16mm Carbide Shaper (1 2 Shank 24000 Max RPM 1.25 Height Plunge Grooving Hardwood Woodworking) Trenchers Patented K9 Multi Directional Teeth: Geometric Patented K9 Multi Directional Teeth: Geometric tooth alignment delivers an aggressive Dual Suction Cleanup Modes: Choose between direct front utility nozzle intake for fast sweeps or the extendable rubber hose for tight corners do not attempt to clear the full tool height in a single pass Deep Mortise and Tenon Joinery: Executing clean vertical plunge sequences into structural frame rails to establish interlocking joint paths for high end furniture assemblies