Afable Router Bits set includes 6 straight router bits with 7 different cutter sizes, suitable for basic woodworking grooving tasks. Cutters are made of YG8 carbide alloy and 45# carbon steel. These YG8 carbide cutters are ideal for rough machining of wood products at low speed. Designed for grooving and trimming wood, suitable for cutting composite materials, plywood, and soft woods. Not recommended for hard woods such as oak, camphor wood, or birch. Green heat resistant coating helps prevent sawdust build-up, resin, and pitch accumulation, improving work efficiency. Ideal for common countertop materials such as laminated particleboard, plywood, and soft wood. Operating at high speeds or cutting hard wood may lead to breakage. For hard wood applications, a router bit with a 1.27 cm shank is recommended. Item Name: Cutter Set straight ripper with 6 mm shank. Weight: 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.