【3 Different Sizes】 The Router Kit Contains 3 Different Sizes, 3mm / 4mm / 5mm. Shank: 8mm. Variety of Options for Your Needs. 【High Quality Material】 The Router Set is Made of High Quality Hard Alloy, More Wear-resistant, Anti-distortion, Rust-proof, Antioxidant and Tear-resistant. 【Multipurpose】 Suitable for Wood, MDF, Chipboard, Compact Plywood. Please Avoid Cutting Ferrous Metals and Other Hard Materials, Steel, Iron, etc. 【Perfect for Woodworking】 For Trimming and Creasing, for Refining Wood Projects. It Is Ideal for Carpenters and Hobbyists of All Skill Levels. 【PACKAGE INCLUDES】 3Pcs Grooving Cutters Wood Router Bits for Woodworking.