Item Type: Router Bit Material: C45 steel + Tungsten Carbide Function: Used for wood grooving. Colour: Black Surface Treatment: Spraying plastics. Shank Type: 1/4in round handle. Cutting Diameter: 1in Package List 1 x Router Bit 1 x Collet Avoid cutting metal and non wood materials. 1Reliable Work: 3 teeth and T slot design makes the router bit suitable for levelling, reshaping, surfacing, trimming, grooving, etc. 2Easy Cleaning: Adopting plastics spraying, which will reduce chip accumulation and achieve quick and convenient cleaning as well. 3Broad Utility: Suitable for wood, medium density fibreboard, laminate, particle board, plywood, compact board, acrylic and so on. 4Good Material: Made of C45 steel and tungsten carbide, the sturdy structure ensures stable working performance, also very durable. 5Easy to Install: Comes with a collet, the easy installation can be quickly completed, and promises firm connection with reliability.