Well, I nearly tried the wax trick, but became immediately impatient with the area, so WD40 instead. Yeah cut out some paint where could reach it. I may return to wax, I thought later I could have used a spoon to deliver it
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And yes of course it's STUCK, though I haven't let the oil sit long. Gave it the best leverage I had to keep from slipping, and that was enough to feel like I'd bust something 3/8"
I have a nice 3/8" fitting (no ball), which is apparently good quality, so far. When I give her a go again I'll employ my 3/8" to 1/2" adapter, see how it goes.
After reading more of the above, time to get that impact...Long overdue anyway. Milwaukee FUEL Stubby 3/8 in. looks interesting, I imagine you can set the torque somehow.
Say Taskforce, come drill out this plug man, NM isn't too far away