Affordable Router BitsThis router bit set included 6 pieces of straight router bits, 7 different size cutters which can meet the basic needs of woodworking grooving. Product material : Cutters are made of YG8 carbide alloy and 45# carbon steel. These YG8 carbide alloy cutters are more suitable for rough machining of wood products at low speed. Applicable material: straight cutters used for grooving and trimming wood. Suitable for cutting all composite materials, plywood and soft woods. Not suitable for cutting hard wood, such as oak, camphor wood and birch etc. Heat Resistant: Green heat resistant coating prevents sawdust build-up , resin and pitch. Improve your work efficiency. Compatible Materials: Ideal for common countertop materials such as laminated particleboard, plywood and soft wood. Working at high speeds or cutting hard wood can cause breakage. If you need to cut hard wood, we suggest you choose a router bit with 1.27cm shank Features: Item Name: Cutter Set straight ripper with 6 mm shank. Weight of 130g. Packaging: Each cutter comes in a single plastic box. Blade material: YG8 carbide. Body material: 45# carbon steel. Stem Diameter: 6mm Round Stem. Cutting diameter: 3mm/4mm/5mm/6mm/8mm/10mm/12mm