SPEC: Product Name: Rock Slab Flat Grinding & Cutting Disc Material: Diamond Alloy + Steel Base Diameter: 3.93in 100mm Rim Width: 1.18in 30mm Bore: 0.78in 20mm Thickness:0.04in 1mm Weight Piece:0.18lb 81g Package Contents: 2 3 4 8 * Rock Slab Flat Grinding & Cutting Disc(with packaging) Reminder: Please allow slight measurement deviations due to manual measurement. Due to the different monitor and light effects, the actual color of the item might be slightly different from the color shown in the pictures. 【Low Chipping & Cleaner Cuts】Designed to reduce edge breakage, this rock grinding disc delivers smoother cuts on granite marble and concrete, helping minimize rework compared to standard cutting wheels. 【Fast Grinding with Heat Control】This stone polishing disc features a balanced diamond layout that supports steady grinding while reducing heat buildup, making it suitable for longer jobs without frequent stops. 【Built for Daily Jobsite Use】Made with durable diamond material, this angle grinder accessory is suitable for repeated use on hard materials like rock slabs, concrete and tile, offering consistent performance over time. 【Wide Compatibility】Fits most 4 inch and 4.5 inch angle grinders with 5 8-11 arbor, making it easy to install and use across common tools for grinding cutting and polishing tasks. 【Multi Purpose Application】This industrial grinding disc works for cutting shaping and smoothing stone slabs tile edges and concrete surfaces, suitable for home improvement projects and contractor work.