Specifications:Features: -Various sizes and shapes for your fine detail jobs.-Will cut glass,metal,stone,wood,etc.-Use in drills,high speed die grinders,flex shapes.-20pcs.of diamond mounted points of assorted sizes and shapes.-6.0mm shanks,diamonds are nickel-bonded and of fine to medium gritsColor:As PicturesMaterial:DimondShape :Sphere, Cylinder,Bullet,Needle,Taper, etcType:Grinding BitSize:Length: 45mm / 1.77in.Package Weight : 355 G / 12.52 OuncesPackage Dimensions (L*W*H) : 200*200*15 MM / 7.87*7.87*0.59 InchesRetail Packaging: Yes, Blister PackagingPackage Include:1x 20pcs Grinding Bit