I was wasting time at HF the other day so I bought a pocket blow gun 68262 a slim blow gun

for the grand price of $1.89 (So this has to be a record low price for a reviewed item here, right?)
I figured it would be handy.
But, there's no trigger so it blows all the time. At least, it would if the industrial connector machined into it actually fit. I could not lock it to any of the several quick connects I tried to mate it to. Theoretically screwing the front knurled part into the main body regulates the amount of air flow. I never really got to try out that feature.
PS mine was not brass-colored body like the one in the picture. The pocket clip may well be the best feature (sad, really)
It's going back. HF loser.
I've found HF air fittings to be really hit or miss on quality. The blow guns mostly seem fine, but the female quick connect fittings I've tried are junk, and break easily if dropped.
YMMV.
I guess I would have figured it out if I had been able to connect it to the quick coupler. unfortunately it didn't. I tried it on a few loose couplers and it wouldn't mate either. Looking at it the dimensions appeared to be off a little.