General description 4 pieces copy router bits designed for DIY carpentry milling, featuring an upper bearing and a variety of cutting diameters for versatile applications. Technical specifications Shank diameter: 8 mm Cutting height: 25 mm (1") Cutting diameters: 6.35 mm (1/4"), 7.96 mm (5/16"), 9.52 mm (3/8"), 12.7 mm (1/2") Material: High-quality YG6 carbide blades and steel shank Compatibility and accessories Compatible with CNC and other automatic routers Suitable for portable and table-mounted routers Usage Ideal for cutting all composite materials, plywood, hardwood, and softwood Other information Features a heat-resistant Teflon coating and ball bearings for precise cutting Double edge cutting design for fast, smooth, and precise cuts