Feature: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 free2. 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 testing3. Perform Edges, Veins And Grooves: Suitable for professionals and amateurs to perform edges, veins and grooves in all woodworking projects4. 8mm Shank Diameter: Shank diameter is 8mm, router bit is made of good quality carbon steel material, come with higher hardness and better wear resistance5. With Storage Boxes: Equipped with 2 storage boxes, convenient for you to take and use, easy to carrySpecification:Item Type: Tongue Groove Router BitMaterial: Carbon steelPurpose: 3 Tooth T shape tenon cutterColor: Silver + yellowTool Handle Diameter: Approx. 8mm / 0.3inBlade Width: 1/2in, 1/4inBearing Outer Diameter: 7/8inBearing Thickness: 1/2in Package List:1 x Tongue Router1 x Groove Router2 x Storage BoxNote:Please avoid cutting metal materials such as iron, sand, etc.