Forney Tungsten Carbide Burr features shank-mounted tungsten carbide burrs that are double cut for fine, precise work. These burrs are designed to be used on ferrous metals, plastic, fiberglass, and other machinable materials, making them i for deburring, sculpting, and removing material in hard-to-reach areas. They are compatible with high-speed die grinders and operate at speeds up to 70,000 RPM. Available in various types and sizes, including cylindrical, tree radius, and tree pointed shapes, each with a 1/4" shank diameter, these burrs come packaged individually on cards for convenient use. Model Number: 60120