This Brake Bleeder & Vacuum Pump Kit is a mutli use testing tool for fuel, transmission, ignition & emissions systems. Manufactured from high quality materisl it features a steel handle with rubberised coating for increased comfort & one handed pump action. The set is ideal for removal of air in brake fluid lines by removing the air filled fluid under a vacuum. It is suitable for all vehicle types. The replaceable O-ring cylinder gasket, rubber piston ring & valves ensure there is always an air tight fit. The easy read dial displays positive 0-760mm Hg/0-30in Hg, easy read dial & also up to negative 635mm Hg.