Surface grinding - WikipediaThe periphery (flat edge) of the wheel is in contact with the workpiece, producing the flat surface.surface grinders tiger eye crushers,Grinding machine - WikipediaA grinding machine, often shortened to grinder, is any of various power tools or machine tools used for grinding, which is a type of machining using an abrasive wheel as the cutting tool. Each grain of abrasive on the wheel's surface cuts a small chip from the.