【7 Different Sizes】 The router bit kit contains 7 different sizes, 3mm / 4mm / 5mm / 6mm / 8mm / 10mm / 12mm. Shank: 6mm. Variety of options for your needs. 【High Quality Material】 The router bit set is made of high quality hard alloy, more wear-resistant, anti-distortion, anti-rust, antioxidant and tear-resistant. 【Multipurpose】 Suitable for wood, MDF, particle board, compact plywood. Please avoid cutting ferrous metals and other hard materials, steel, iron, etc. 【Perfect for Woodworking】 For trimming and grooving, for refining wood projects. It is ideal for woodworkers and hobbyists of all skill levels. 【PACKAGE INCLUDES】7 pieces of straight woodworking router bits.