This router is for panel cabinet door making ,hand-making a drawer or other woodworking;This router bit is made of cemented carbide for high hardness and long service life. Usually used on electric wood routers or engraving machines for woodworking;Solid Hardened Steel Bodies with Anti-Kickback Design and heat- resistant Teflon coating, the blade is sharp and the bearings wont break;For use on table mount and handheld router, can be processed solid wood, particle board, synthetic board，but to avoid processing materials that are too hard;If you have any questions about our router bits, please contact us feel free, and we will reply youw within 12 hours.Specifications:Body Material: Solid Hardened SteelBlade Material: Industrial grade micro grain carbidePackage include:1pcs x Router BitsNote:Please allow 1-3mm differs due to manual measurement.Due to the different display and different light, the picture may not reflect the actual color of the item. Thanks for your understanding.