Stem Diameter: 6 mm, cutting diameter: 1/4, 5/16, 3/8, 1/2, cutting height: 13/16, 1-1/16, 1-3/16, 1-7/32. Industrial grade C3 micro-grit carbide burrs with drop-cut design double edge, high performance, sharper cut. Build-up and heat-resistant Teflon coating can effectively prevent breakage or bending under high-speed working conditions. Flush cutter with top end bearing, ideal for fast, smooth and precise cuts for laminates and jigs. Features: Solid hardened steel body with anti-kickback design. Heat and buildup resistant Teflon coating. Heat-resistant coating prevents buildup of sawdust, resin and pitch. Industrial-grade tungsten carbide blade. High hook and shear angles allow blades to slice smoothly, producing clean, splinter-free material. Specifications: Color: Blue Body material: Solid hardened steel Blade material: C3 micro-grain tungsten carbide Maximum rotational speed: 12000 RPM Note: The data is from manual measurement; please allow 1-3 cm error. Due to differences between lighting and screen settings, there may be some color variation. The actual product should prevail.