These precision made solid tungsten carbide ball burrs are more durable, will cut for longer, and cut cleaner than regular HSS, high speed steel burrs. Ideal for creating micro settings, engraving metal, carving wood, bone and shell, carving plastics, carving wax, carving Carrara marble and for texturing and shaping metals.With a 2.35mm (3/32") shank and overall length of 44.5mm they can be used in a rotary tool (i.e Dremel), pendant motor, flexible shaft, bench press or micro motor.Perfect f...