[The grinding machine is not easy to damage the disc] The diameter of the disk that is not easy to be damaged is 4 inches (100 mm), the thickness is 0.078 inches (2 mm), and the pore diameter is 0.78 inches (2mm). , For cutting and polishing materials. [Industrial Quality] Corner grinding machines are used with high manganese steel base, new welding technology, diamond grinding edge, and cutting , faster, more accurate, better vibration resistance, and longer service life. [Quickly complete cutting] The indestructible discs are wear - and heat -, sturdy and , uniformly grinding, and cutting non -dander. Cut any materials in a few seconds to work at a high speed for a long time without cracking. [Low noise, low dust] The indestructible discs of 2mm thick 4 -inch diameter can quickly and accurately cut, very efficient and practical, the cutting is smooth, the cutting effect is very good, the cut noise is low, and the dust is less. [Wide application range] It is suitable for cutting and polishing color steel tiles, thin -wall tubes, corner iron, tiles, marble, red brick, PVC pipes and other materials for cutting and polishing color steel tiles. Colour:As Shown Material:Metal Size:100mm Package Contents: 10 x cutting discs Only 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.