Works really well. Allows me to check inflation level and top off each tire in under a minute without having to remove the wheel pants! Huge time saver! Unlike most chucks I have used in the past, this one doesn't leak at all while reading the guage. It is also tolerant of a slightly off axis connection. One of my stems is a little crooked, and the chuck doesn't leak with that one either. A laser pointer, small tripod, and step drill bit made hole marking and drilling super easy. A dab of torque seal on the sidewall of the tire just above the floor makes for easy future positioning. I bought some flush mount rubber hole plugs for sheet metal from Amazon, and they fill and dress the hole perfectly. (Mine are black, but they also come in white.) I also bought a 10mm nut driver that works great for removing and reinstalling the valve caps. Only two minor complaints: (1) The input pressure cannot exceed 60 lbs. To avoid damage I bought an inline regulator ($18 from Amazon) that I leave on the tool, making it a little unwieldy and long for my cross country tool bag. (2) The guage is graduated in 1-lb increments, with numbers on the tens (10, 20, 30, etc.) Usually on such guages there is a bolder, longer "5" mark, but this does not have one, which makes counting the tiny marks a bit difficult. The solution is a headlamp and reading glasses, but a bolder longer "5" mark would have been nicer.
