Power Steering fluid or ATF (depends which one I have that day) mixed about half and half with mineral spirits is my penetrating oil of choice. It seems to work as well as any of the name brands. Thanks for the JAFE tip, I should have a 3/8" circle H in the mail today and I'll use it.
JIS
JIS,
It seems everyone has their own variation of the cocktail. I like my JAFE Juice on the rocks with a twist of lime, shaken, not stirred.
Good luck on the new Crafty H-circle ratchet...