General description Diamond hand grinding block is designed for polishing stone, glass, and tiles. It features a diamond electroplating layer that ensures high strength, heat resistance, and wear resistance. This lightweight tool is easy to use for extended periods and is made from high-strength diamond and high-elastic sponge, making it very durable and suitable for repeated use. Technical specifications Grain: 400 Material: High-strength diamond and high-elastic sponge Usage Used for grinding chip burrs after cutting stone, glass, tile, etc. Suitable for various materials from coarse to fine; the finer the sand, the better the polishing effect. Helps quickly solve common issues like chipping, burrs, and edges. Applicable for stone polishing, tile cutting, glass burr cutting, metal polishing, and renovation.