Check the listing for details. 180# Abrasive Mounted Stone 2.35mm Shank 2/5" Dia Conical Grinding Wheel. Condition: New. Listed at 8.84 USD. Descriptions:This corundum grinding stone has high hardness, toughness, and good stability.Can be installed on electric tools such as grinders, and grinding machines for deburring, surface grinding, sharpening, polishing and time-saving.Widely used for grinding and polishing glass, ceramics, tile, brick, plastics, wood, fiberglass, stone, rock carbide, gold, silver, metals, and anything with a hard surface.Tips:The new corundum grinding bit should be tried at a low speed before use. If there is a jumping problem, do not continue to use it.Please press gently and avoid shaking. The corundum grinding bit is used to grind workpieces. If excessive force is applied, the grinding powder is not easy to remove.Flying chips may be generated during use.