Carving Diamond Burr 1.Shank:6mm 2.Diamond Grit:46#,60#,100#,150# 3.Usage on Stone, Carbide, Steel, Glass etc. Carving Diamond Burr1.Shank:6mm2.Diamond Grit:46#,60#,100#,150#3.Usage on Stone, Carbide, Steel, Glass,Plastic etc.4. Application: Deburring, Carving, Grinding, Polishing, Drilling5. Package: Wooden Box6. Coating Nickel / Titanium