Features 1、Clean And Accurate Cuts: Carbon steel cutting knives can make clean and accurate cuts on all types of wood to smoothly cut into inventory, resulting in clean and chip free 2、Heat Resistant PTFE Coating: The sturdy carbon steel body adopts heat resistant PTFE coating and carbon steel body, which can withstand heavy use and time testing 3、Perform Edges, Veins And Grooves: Suitable for professionals and amateurs to perform edges, veins and grooves in all woodworking projects 4、8mm Shank Diameter: Shank diameter is 8mm, router bit is made of good quality carbon steel material, come with higher hardness and better wear resistance 5、With Storage Boxes: Equipped with 2 storage boxes, convenient for you to take and use, easy to carry Specification Item Type: Tongue Groove Router Bit Material: Carbon steel Purpose: 3 Tooth T shape tenon cutter Color: Silver + yellow Tool Handle Diameter: Approx. 8mm / 0.3in Blade Width: 1/2in, 1/4in Bearing Outer Diameter: 7/8in Bearing Thickness: 1/2in Package List 1 x Tongue Router 1 x Groove Router 2 x Storage Box