Shank Diameter: 6mm, Cutting Diameter: 1/4, 5/16, 3/8, 1/2, Cutting Height: 13/16, 1-1/16, 1-3/16, 1-3/16, 1-7/32. Industrial grade C3 micro-grain carbide end mills with double-edged cutting design, high performance, sharper cutting. Build-up and heat resistant Teflon coating can effectively prevent breakage or bending under high-speed working conditions. Flush trim cutter with top end bearing, ideal for fast, smooth and precise cuts for laminates and templates. Features: Solid hardened steel body with anti-kickback design. Heat and build-up resistant Teflon coating. Baked on heat resistant coating prevents build-up of sawdust, resin and pitch. Industrial grade tungsten carbide blade. High hook and shear angles allow the knives to slice smoothly, producing clean, splinter-free material. Specifications: Color: Blue Body Material: Solid Hardened Steel Blade Material: C3 Micro-Grain Tungsten Carbide Maximum Rotation Speed: 12000 Note: The data is manual measurement, please allow 1-3cm