For mass-production of straight cylindrical and tapered shapes to precise tolerance of sizes, shapes along with finish quickly and easily, Dong-IL centerless grinding wheels and rubber regulating wheel(the drive mechanism for the workpiece) are used for Through-Feed, In-Feed, End-Feed grinding throughout the automotive, machine tool producer, bearing, accurate pin manufacturer, aircraft, steel mill, turbine blades, fastener manufacturing and even in finishing rod producer as well as general shops.