<p>[MATERIAL]: Our cutters are made of solid hardened steel and C3 grit carbide. (C3 grade carbide is the highest grade used in the router bit industry). Precise product design creates smooth, detailed cuts suitable for all skill levels.</p> <p>[PERFECT DESIGN]: Hardened steel body with anti-kickback design. Balance tolerance of +/- 0.003 (allowing smooth operation at very high RPMs). 3 C3 Carbide Tipped - Micro-grain grade provides maximum strength and durability.</p> <p>[WIDE USE]: Router bit tools can cut most materials including: wood, MDF, particleboard, plywood, panels, softwood, hardwood, etc. Suitable for handcrafting a drawer or any other woodworking, can be used to join wood from edge to edge or end to end. 39;other. Perfect choice of professionals and hobbyists.</p> <p>[Where to use]：Designed for laptop or desktop wood engraving machines, such as handheld and table mounted CNC routers by computer. Note: It cannot be used in drills and electric drills.</p>