Tire Inflator, 3-in-1 Inflation Gun, with Gun, Locking Chuck and 2-inch Gauge,  NPT and Flexible Hose (Campbell Hausfeld MP600000AV) Easy to use when connected to your air compressor, the MP600000AV combines 3 tools in one compact designan inflation gun, chuck and gauge. The flexible hose helps you maneuver move easily into heel wells and other tight spaces. Easy to control with a large, readable gauge2 in diameter--that measures between 10 - 150 PSI. The inflation gun features a side relief valve for bleeding off air and reducing pressure in over-inflated tires, helping you achieve proper inflation Simply squeeze the clip and position the chuck over any Schrader-type tire valve; release the clip to lock the hands-free chuck into place. Squeeze the trigger on the inflation gun to inflate! Campbell Hausfeld - The Air Power Expert