Features Premium Metal Material: Made of high quality steel, the work milling cutter bit is strong with high hardness, wear-proof and very durable. Function: The work milling cutter bit is generally used on electric trimmers or engraving machines for wood engraving or trimming. Scope of Application: The treated wood has smooth surface without glitches, the work milling cutter bit is suitable for hardwood, cork wood,composite board, etc. Widely be Used: The work milling cutter bit is an essential tool for woodworkers, wide applications for slotting, engraving, cutting, milling, etc. Easy to Install: The cutter bit is 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. Package List