[Material]: Our cutters are made of solid hardened steel and C3 carbide. (Grade C3 carbide is the highest grade used in the cutter industry). Precise product design creates sharp cuts smooth and detailed for all levels of complexity. [Perfect Design]: Hardened steel body, anti-recoil design. Balanced tolerance of +/- 0.003" (allows smooth operation at very high rpm). 3 C3 Carbide Tip - Micrograin grade provides maximum strength and durability. [WIDELY USED]: The router tool can cut most materials including: Wood, MDF, Particleboard, Plywood, Board, Softwood, Hardwood, etc. Ideal for handmade drawers or other woodworking, it can be used to join wood from edge to edge or end to end. The perfect choice for professionals and amateurs. [Place of use]: Specially designed for notebook computers or desktop wood engraving machines, such as portable and desktop CNC engraving machines. Note: Not for use with power drills and drills.