[MATERIAL] Our cutters are made of solid hardened steel and C3 grit carbide. Grade C3 carbide is the highest grade used in the router bit industry. Precise product design creates smooth, detailed cuts suitable for all levels of complexity. [PERFECT DESIGN] Hardened steel body with anti-recoil design. Balancing tolerance of +/- 0.003 allows smooth operation at very high RPM. 3 C3 carbide tips – micro-grain grade provides maximum strength and durability. [WIDE USE] Router tools can cut most wood-based materials including wood, MDF, particleboard, plywood, panels, softwood, and hardwood. Ideal for both professional and hobbyist applications. [APPLICATION] Designed for use with CNC wood engraving machines, including portable and table-mounted CNC routers. Not suitable for use in drills or handheld power drills. [SPECIFICATIONS] Shank Diameter: 1/4 inch (6.35mm) Cutting Width: 1/4 inch (6.35mm) Cutting Depth: 1/2 inch (12.7mm) [TECHNICAL DETAILS] Material: Alloy blade, carbon steel handle Blade: Industrial grade micro-grain carbide Cutter: 600 grit CNC ground, mirror finish Balance: +/- 0.003 tolerance Body: Fully hardened steel [SAFETY NOTE] 1. The blade is sharp – handle with care and keep out of reach of children. 2. Dimensions are manually measured and may have a 0–3mm variation, which is considered normal. 3. Suitable for wood, MDF, particle board, and plywood. Avoid cutting ferrous metals and non-wood materials such as steel, iron, or abrasive substances.