Suitable Size: 6 inches in diameter, 1 inch wide, Bore 1/2 inches, 320 grit.stainless steel body, more smoothly, does not rust, high hardness, high compressive strength, good wear resistance and long service life.High performance: Electroplated diamond flat grinding wheels are mainly used for grinding and cylindrical grinding of hard alloy measuring tools, tungsten steel, high-speed steel, alloy steel, glass, gemstones, jade, jadeite, amber honey wax raw stones, magnetic materials, ceramics, molds, etc.New upgrade: Compared with the traditional diamond grinding wheel, the generates less heat, and is more suitable for hard alloy, high alumina porcelain, optical glass, gem, semiconductor materials, stone materials, etc.More professional: Use this wheel 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 abrasive shape retention long service life.perfect Compatibility: Meticulously manufactured for a precise fit, eliminating the need for "Truing" or "Dressing" adjustments. These wheels optimize the performance of budget-friendly grinders, rivaling industrial . The Aluminum arbor reducing bushing offers superior smoothness compared to plastic alternatives. CBN grinding wheels are perfect for high-speed steel product grinding.Type:320 GritColour:SilverMaterial:steelSize:157 x 25 x 12.7mmPackage Contents:1 * diamond wheelOnly 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.