Shank diameter: 8mm Cutting diameter: 15.9mm Cutting length: 30mm/ 40mm/ 50mm Total length: 75mm/ 84mm/ 94mm Product features: stable precision, fine workmanship, durable rust, clean cutting, smooth rotation, fast operation, significantly improve service life. There are no burrs on the cutting material. PTFE Coating: Heat-resistant PTFE coating to prevent the accumulation of wood chips, resin and asphalt, good wear resistance, long service life. Solid Anti-Kickback Design: Hardened steel housing with balanced anti-kickback design with high quality CNC guide and bearings. Woodworking Tools for Professionals: Perfect for all your large TRIM applications, cuts all composite materials, plywood, hardwood, and softwood.