Suitable Size: 8 inches in diameter, 1 inch wide, bore 5/8 inches, 600 grit. Stainless steel body, smooth surface, does not rust, high hardness, high compressive strength, good wear resistance, and long service life. High performance: Electroplated diamond flat grinding wheels are designed for grinding and cylindrical grinding of hard alloy measuring tools, tungsten steel, high-speed steel, alloy steel, glass, gemstones, jade, magnetic materials, ceramics, molds, and similar materials. New upgrade: Compared to traditional diamond grinding wheels, CBN grinding wheels generate less heat and are more suitable for hard alloys, high alumina porcelain, optical glass, gemstones, semiconductor materials, and stone materials. More professional: Use this wheel for precise grinding on common grinders. Recommended operating speed: 1000 RPM to 3600 RPM. As a high-performance abrasive, CBN offers high compressive strength, low heat generation, excellent abrasive shape retention, and long service life. Perfect compatibility: Precisely manufactured for a secure fit, eliminating the need for truing or dressing adjustments. These wheels enhance the performance of cost-effective grinders, delivering results comparable to industrial models. The aluminum arbor reducing bushing provides superior smoothness compared to plastic versions. CBN grinding wheels are ideal for high-speed steel product grinding. Type: 600 Grit, Color: Silver, Material: Steel, Size: 20.3 x 20.3 x 2.5 cm. Package Contents: 1 x Diamond Wheel. Only the above package content is included; other products are not included. Note: Light reflection and display differences may cause slight variations in color between the image and the actual item. Measurement error allowance: +/- 1-3 cm.