- This product has a Stainless steel working part which is coated with Super Coarse diamond crystal. - It is defined as the rotary grinding instruments for hard tissues such as tooth and bones. - It is used for connecting with dental handpiece. - It can also be used for grinding metal, plastic, porcelain and other hard materials. - This product is used by connecting to dental handpiece and rotates to grind hard materials and tissues etc. - It is the dental diamond burs with stainless steel shank and non-sterile instrument. - Main materials: - Metal base :Stainless steel (including nickel and chromium). - Working part: Super Coarse diamond crystals attached to metal base(including nickel and chromium). - Shank : Stainless steel (including nickel and chromium). - Shape: Flame Ogival End . - Color Coding: Black. - ISO/Max. Diameter: 257/023. **For further product information, please contact Chat Support**