I never found one that tight. I had a set of cut out aluminum jaws in my little arms room that fit in a vise to hold bbl and gas cylider and a whack with my nylon lead filled mallet on the gas plug/rod handle would do it. Even in the rainy season our FM's said just finger tight and no lube on the plug and check it often. Possibly new made plugs have courser/rougher cut threads. You do have the tool? Good luck.
"Peace is that brief glorious moment in history when everybody stands around reloading"
Bravery is being the only one who knows you're afraid.
- David Hackworth -