●Air Operated Valve Lapper,special for engine repairing ●Design for operating in tough environments. ●Adjustable speed regulator for precise control during operation. ●Maximum diameter: 45 mm ●Rpm: 3000 rpm ●Hose inner diameter 10 mm ●Air consumption: 100 l/m ●Complete with rubber caps of 20mm, 30mm, 35mm and 45mm.