The ShoeBox was in the garage filling a 60 min Drager tank last night. I stepped out ever 20 min or so to check on it. It was at about 4300 psi so I figured I would give it a few more min to get a little closer to a full fill. When I opened the garage door It happened. BOOM! Instant dust storm. I thought the tank exploded. But it was the microbore hose. The bearing ring on the female foster fitting blew apart. I started out to shut the valve off to save some air, but thought twice. You know when you drop the wand at the car wash and try to pick it up without getting whipped? Well multiply that by 10 fold. Other than loosing 4000 psi of air, the whipping hose broke out a couple pieces of the milk crate the compressor was sitting on, snapped off the 3/8” Air hose feed to the ShoeBox, the desiccant and filter kits and beat the crap out of the bandsaw sitting next to it. Could have been a lot worse if it would have happened 2 seconds later!