100% and .Simple construction, nice operation..material with long service time.Provides much convenience to your daily woodworking.The router bits works great with all kinds of materials and surfaces, like woods, mdf, particle boards, plywood, panels, softwood, hardwood and many others. which is truly versatile for your extra convenience. perfect for woodworking. Rabbet Router Bit with 6 Bearings Set - 1/4" Shank 6mm shank Woodworking cutter Tenon Cutter for Woodworking Tools Feature: 100% and . Simple construction, nice operation.. material with long service time. Provides much convenience to your daily woodworking. Specification: Material: 45# steel Carbuye tip: YG8 Color: shown Shank diameter:6mm/1/4 Detaild specification, pls check following photos. These router bits are suitable for wood, MDF, particleboard, plywood, compact panels, hardwood floor, oak, acrylic. Do not cut metal and non-wood materials such as: steel, iron, sand, etc. These bits cut Bevel rail and stile kitchen cabinet door frames, also can making photo picture frames, drawer and other woodworking.