ITEM NAME:100mm Helical Tooth Corrugated Diamond Grinding Wheel Bowl Grinding Wheel G N3E1 100mm Helical Tooth Corrugated Diamond Grinding Wheel Bowl Grinding Wheel G N3E1 High Diamond concentration for long life and aggressive material removal Suitable for use on grinding on marble,tile,concrete and rock. Large grinding segments with heat treated cup design Use Dry/Wet to smooth Concrete or Field Stone One Reducing ring:From 7/8-Inch to 5/8-Inch color:blue Material:Diamond Dimensions:hole diameter 22mm; tooth width 18mm; tooth thickness 6mm Package Contents: 1*Diamond grinding wheel