💯 💯 43 Assorted Accessories Compatible with most die grinders & rotary tools Set of 30 diamond-coated burrs with 40 Grit HSS + Tungsten Carbide - Handle Diameter: Approx. 3mm/ 0.12inch 20000 max RPM to be suitable for use in most cutting cases Mandrel with 1/8" straight shank for firmly holding and accurate centering Blade size available in 6 diameters: 22mm, 25mm, 32mm, 35mm, 44mm Ideal for precision cuts in wood, aluminum, brass, copper and more Recommended for jewelers, lapidary use, craft modeling, home repair, hobbies, crafts & more