For sharpening tools and other appliances. According to safety measures, the grinding must be fitted with a wheel cover and must be firmly secured to a bench stand. Provided with permanently self lubricating ball bearings. Furnished for use with a 110 volt power supply or 220 volt power supply. The specifications listed here are for your reference. If you wish to order Bench Grinders from a specific manufacturer, please refer to the comparison table listing major international manufacturers and product model numbers on the other page.