Tungsten Carbide Single Cut Rotary Roller SET 1/8" Shank Fit Shank Diameter: 3mm, Shank Length: 35mm, Cutting Diameter: 6mm Material: Tungsten | Carbide Usage: Rotary burring, high micro hardness, high abrasion resistance, good toughness High performance on processing copper, aluminum, alloy, iron, marble, jade, steel, glass, wood and plaster, etc Highly recommended for metal and plastic polishing, jewelers, lapidary use, hobby, crafts, craft modeling, home repair and much more Character: Processing quality, high finish. Easy to master, easy use, safe and reliable. Can be processed into a variety of high-precision shaped mold cavity. Durability than high-speed steel tool to improve ten times, more than 200 times higher than the small grinding wheel. Specification: Drill size: 6mm Shaft diameter: 3mm Compatibility: small rotary tools and high-speed polisher The optimum rotation speed is 6000-40000 r/min Included: 10pcs tungsten steel solid edges in a storage box Brand: It is recommended to use water as a lubricant when using these burrs. All burrs in this set have a shank size of ? "(3mm), allowing them to be compatible with most grinders and rotary tools as you shape, grind and finish your work with precision. When the job or project is done, you'll be happy to place your burrs in the compact storage case so you can store, organize and transport this set for future use. Contents: 10pcs Rotary Burr Tools