I bought this as a tool to avoid borrowing from the other guys in the store and it has some features that are better than many other options . But out of the box it just didn't work, didn't create a vacuum. It's kind of the simplest; Compressed air flows through the tool in the form of a vortex, creating a vacuum. The problem with this device was the connection between the vacuum device and the tank fitting; It had a quick connection to the inner seal, and the inner seal is somehowโฆ