They have been mentioned before I use mine a lot. Good to to bring them up again. You can make your own replace one leg of spring dividers with a bent and polished used up beading tool. Photo below the old ones are hard to find
Yes still relevant, you can contact the mfg of your compressor and request a MSDS sheet. They are required by law to provide one free. Then you can cross reference on line or at your local compressor store/repair shop. That is how I ended up with the 5 gal can of oil:):beerchug:
JJ
FYI the Edgar Thompson Works is the oldest steel factory in the Pittsburgh area Maybe in the country built by A Carnegie
I worked there in the 1970,s . Glad I got out alive.
For taking off barrels I always use Kroil penetrating oil I set the gun vertical put some oil around the barrel and receiver and let it sit until you see the oil inside MTC YMMV
They used to make that tool for use in a lathe, might work
Also I use the Jewelry beading tool for back ground in steel. Sometimes theylast a long time Sometimes not I consider the expendable . The one I use I get from Gesswein by the 100 packs,just pick the size dot you want MTC