I bought this because my Milton dual-chuck didn't have the straight chuck, and had begun to scratch the numbers off the internal gauge (behind the glass). I have a Craftsman single chuck, very similar to this one (with the sliding gauge), that I like very much. So, I decided to give this one a try. For the most part, and for the price, this inflator is alright. I don't know that I'd recommend it to someone. Both chuck heads are kinda' finicky, and you have to fiddle with them a bit. The one that faces aft (toward you) is very finicky. By the time, I get done fiddlin' with it, I've let half the air out of my tire. And, that's a pain when you're inflating six Load Range E (85 PSI) tires. When I used it on the dually, yesterday, I found myself switching between this inflator (because of the straight [forward] chuck) and my old Milton dual-chuck. On the plus side, the gauge extension seems to be well-made, and should last the life of the inflator.