The BlueSpot Brake Bleeder and Vacuum Pump Kit is a multi-use testing tool for fuel, transmission, ignition and emissions systems. Manufactured from high quality material it features a steel handle with rubberised coating for increased comfort and 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 and valves ensure there is always an air tight fit. The easy read dial displays positive 0-760mmHg/0-30inHg, easy read dial and also up to negative 635mm Hg.