long, long, box end wrench:
ever have a nut or bolt that you need to hold that's way, way down there and you just can't reach?
I welded a 3' piece of 1/8" steel rod to head of the adjustment screw on a regular pipe hose clamp. So now my adjustment screw is 3' long.
You put the nut or bolt head in the hose clamp, rotate the rod to tighten it to hold the nut or bolt, and then you can reach anywhere.
Once you have the bolt where you want it, rotate the rod to release the bolt head.
"0" above is supposed to be the hose clamp