Features： 1、For DIY Projects Joint: This drill bit set can be used to make the cabinet door frame, plane, even floor, wall panel, panel, table top and other DIY projects joint 2、Clean Cut: The cut of this tongue groove router bit is very clean and everything is ly integrated, very practical 3、Smooth Cut: Used for hand made drawers or other woodwork, the cutter can cut into materials smoothly, resulting clean, no debris 4、Anti Backlash Design: Rugged carbon steel body adopt anti backlash design, bit accumulation and heat resistant PTFE coating protection 5、1/2in Shank Diameter: Shank diameter is 1/2in, blade is made of quality alloy material, wear resistant and durable Specification： Item Type: Tongue Groove Router Bit Material: Main Body: Carbon steel, Bit: Alloy Specification: Shank Diameter: 1/2in Cutter Head Diameter: Approx. 47.6mm / 1-7/8in Blade Depth: 1/2in Package List： 2 x Milling Cutter 2 x Gasket 2 x Storage Box