Kutzall Original Dove Tail Burr, 1/8" Shaft (3.1mm) - Fine, Tungsten Carbide Coating: 3/8" (9.5mm) Head Diameter x 1/2" (12.7mm) Head Length - DT-38-EG wood working tools carving bits woodworking dremel accessories rotary files tungsten coating power plastic sanding angle grinder hobby carpentry sand paper woodturning saburr accessory carving makita bosch proxxon dewalt foredom ruby Tungsten Carbide Teeth - Giving you outstanding wear-life, for a much longer lasting burr. Comfortable, Effortless Operation - Allowing you to easily and quickly remove a variety of materials. Leaves a relatively smooth finish. Should only be used on non-metals or non-metallic materials.