Feature 1Made of high quality steel, it is strong with high hardness, wear-proof and very durable. 2It is generally used on electric trimmers or engraving machines for wood engraving or trimming. 3The treated wood has smooth surface without glitches, which is suitable for hardwood, cork wood,composite board, etc. 4An essential tool for woodworkers, wide applications for slotting, engraving, cutting, milling, etc. 5Easy to install and maintain, 4 different types of bit.SpecificationFeature: Made of high quality steel, it is strong with high hardness, wear-proof and very durable. It is generally used on electric trimmers or engraving machines for wood engraving or trimming. The treated wood has smooth surface without glitches, which is suitable for hardwood, cork wood,composite board, etc. An essential tool for woodworkers, wide applications for slotting, engraving, cutting, milling, etc. Easy to install and maintain, 4 different types of bit. Specification: Material: Steel Shank diameter: 6mm Product specification: 6mm 8mm 10mm 12mm Package list: 4 * Core Box Router Note: The actual product color may deviate from the photo due to light. There may be a slight deviation in the measurement of product.