This 2 in1 brake fluid bleeder kit is a multifunctional car tools, which is used for a variety of automotive testing and diagnosis tasks. Such as the testing of engine, vacuum-operated mechanical components, fuel system, Ignition system, especially work for changing brake clutch fluid and gearcase/ power steering oil on Car Truck Motorcycle Motorbike The clutch bleeder kit has a excellent seal and product performance, each component is closely matched. Suction is good, and this is easy to achieve a 15 in Hg or more vacuum. There are different adapters in the oil change kit for all vehicles, suitable for both home and business applications. Brake fluid tester equipped with vacuum gauge, easy to read out the pressure. Pressure: 0-40 psi(0 to 3 bar), vacuum: 0-26 inhg(0 to -1 bar). Slide black collar forward toward barbed connector for vacuum, slide back for pressure, pump and then move the collar for releasing pressure. 23pc portable brake and clutch system bleeding tools come with a durable custom molded storage case. One-person operation of the automotive hand tools is easy to storage and transportation, no longer miss parts, protect pressure gauge from impact, and extend the life of the tool. The hand held vacuum pump kit includes vacuum and pressure pump with gauge, 2 reservoir jar, 5 transparent hoses, 13 adapters and portable case, meets all your needs. dual vacuum/pressure hand pump kit hand held vacuum and pressure pump tester kit manual vacuum pump brake clutch fluid bleeder bleeding tool kit one-man hand vacuum pump kit for brake bleeding and automotive tests brake and power steering bleeder kit with hand vacuum pump brake fluid bleeder kit Ideal for a wide range of applications on many vehicles including motorcycle brake bleeding, Hand vacuum pump is easy to bleed your car brakes Universal 2 in 1 Vacuum Pump and Brake Bleeding Test Kit to repair brakes and test vacuum systems on vehicles allows testing of many vacuum operated systems Equipped with vacuum gauge, convenient readout of pressure. Handheld vacuum pump is easy to bleed your car brakes by yourself Suitable for testing boost pressure, vacuum solenoid valves, tank ventilation, MAP sensors, etc. It includes different adapters designed for most vehicles, the control switch can be switched on the positive and negative pressure mode A plastic carry case is included, convenient to storage and collect the parts Slide the collar on the front in the opposite direction to the adjustment, release the pressure and pump, then put the collar back in and pump. Try this several times, it will work again.