Suitable size: 8 inches in diameter, 1 inch wide, 5/8 inch bore, 600 grit. Stainless steel body, smoother, does not rust, high hardness, high compressive strength, good wear resistance and long service life. High performance: Electroplated diamond plate grinding wheels are mainly used for grinding and cylindrical grinding of carbide measuring tools, tungsten steel, high-speed steel, alloy steel, glass, gemstones, jade, jadeite, raw honey wax, magnetic materials, ceramics, molds, etc. New upgrade: Compared with the traditional diamond grinding wheel, the CBN grinding wheel generates less heat and is more suitable for cemented carbide, high alumina porcelain, optical glass, gemstones, semiconductor materials, stone materials, etc. More professional: Use this disc for the most precise grinding even on the most common grinders. 1000 RPM to 3600 RPM is recommended. As a high-performance abrasive, CBN has high compressive strength, generates less heat, and good shape retention for the abrasive, providing long service life. Perfect compatibility: Carefully manufactured for a precise fit, eliminating the need for \"dressing\" or \"truing\" adjustments. These discs optimize the performance of budget-friendly grinders and compete with industrial ones. The aluminum bushing offers superior smoothness compared to plastic alternatives. CBN grinding wheels are perfect for grinding high-speed steel products. Type: 600 grit Color: Silver Material: steel Size: 20.3 x 20.3 x 2.5 cm Package contents: 1 * diamond disc 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 allowed measurement error is +/- 1-3 cm.