Features: -Used for cutting and grinding glass, marble, ceramic tile etc.-It also designed for grinding steel, stainless steel and other materials in nuclear plants, oil and gas industries and applications where spark reduction is an important feature.Color：As PicturesMaterial:DiamondOuter Diameter: 100mmInner Diameter:1x 2pcs 16mm(Groove)1x 4pcs 20mm(NO Groove)Type:Abrasive DiscQuantity:6Package Weight : 320 G / 11.29 OuncesPackage Dimensions (L*W*H) : 180*150*20 MM / 7.09*5.91*0.79 InchesRetail Packaging: No, No PackingPackage Include:1x 6pcs Diamond Cutting Discs