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Yes, I think the tool probably lasts forever. ?I try to loan mine out, but I don't get a lot of takers. ?This PEX connector system, and several other proprietary variants, don't make sense to most people for just a few connections, because you can't buy the fittings at local big box or hardware stores (at least not in my area). ?It's not really intended for the DIY'er to do a few bits of piping, but rather the professional plumber who does this all day long.

But the fittings are cheap (the cheapest in fact, one of the savings when doing a lot), and you can them online (eg, ) or at professional plumbing supply places.

Copper pipe is totally standardized. ?The stuff at big box stores for residential is the same as what you'd get at a plumbing supply for commercial/industrial. ? Google it and you'll see there's 3 standard types - K, L, and M -- which have slightly different wall thicknesses, which is primarily about mechanical strength, ie, one typically uses thicker wall for in-ground burial, etc. ?But for air in a shop it makes no real difference.

Mark ? ? ?