The EnPoint Woodworking Carbide-Tipped Beading Router Bit is a middle level tool made of high-quality materials. It has a carbide tipped and Teflon coated cutter, with an extra strong and long lasting high-speed steel shank. The shank diameter is 1/4 inch, the cutter diameter is 1/4 inch (6.35mm), and the cutter height is 9/32 inch (7mm). This router bit provides an excellent wear life and is suitable for a variety of woodworking applications.