Tungsten Carbide Single Cut Rotary Roller SET 1/8 " Shaft Fit Shank diameter: 3mm, Shank length: 35mm, Cutting diameter: 6mm Material: Tungsten | Use of carbide: Rotary burrage, 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 polishing metals and plastics, jewelers, lapidary use, hobbies, crafts, craft modeling, home repair and much more Product description Quality of treatment, high finish. Easy to learn, easy to use, safe and reliable. Can be made into a variety of high-precision shaped mold cavity. Durability than the 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 speed of rotation is 6000-40000 r / min Included: 10 solid tungsten steel ledges in storage box Brand: It is recommended to use water as a lubricant when using these burrs. All of the burrs in this set have a shank size of " (3mm), which allows them to be compatible with most grinders and rotary tools when you form, grind and finish your job with precision. br> When the job or project is done, you will happily place your burrs in the compact storage case so you can store, organize and transport this set for future use. Content: 10pcs Rotary Cutter Tools Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin