FANTASTIC TOOL!!!!!!!!!!!!! For me; welcome to modern tire service!! Qualify that only by the fact that the tire and steel rim are shiny new. I used plenty of the tire install-fluid (and got (a good laugh as) I got some in the face as the tire seated); a faucet is nearby for cleaning up. WOW!!!!!!!!!! I set it to 120psi and my first trigger pull was in safe open space to "feel a new round". The second shot was for the tire, and worked BEAUTIFULLY on that first shot!!!! DUMBFOUNDING!!!!