Product Name: 8 inch Diamond Grinding Wheel, No Hole Flat Lap Disk, Diamond Lapidary Discs
Outside diameter: 8" inch(200mm); Thickness: 1.2mm
Arbor hole: No Center Hole,the surface is completed filled with diamond, only one side is coated diamond
The diamond discs are one of the finest discs manufactured for hobby, lapidary, glass applications
Suitable to grinding gemstone, jewelry, glass, rock, etc.