Features: Can be used dry or wet.Grinding of marble, , Shi , ceramics, artificial stone and glass,It is especially suitable for concrete external walls in buildings or decorations.High manganese steel is integrally stamped and formed, which has good seismic performance and does not deform or break when in use, and the work is more .High-quality raw materials with particles have high density, cutting, good effect and long service life.describe:Name: Angle grinder round edge grinding discSpecification: thickness 30mmQuantity: 1pcAperture: 20MMDiameter: 75MMUsing machine: angle grinderMaterial: steelcolour: GoldPackage Contents:1 x Angle grinder round edge grinding discOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.