...and loosen the torque setting off when not used.
Using a breaker bar and applying a static load (standing on it) smack the head with a heavy hammer... Old fashion impact hammer.
I have never used a 12 volt impact hammer, do the good ones work good to break loose lug nuts at 120 foot pounds?
I have a Milwaukee, the lighter one. it gets them off my F150 HD when they are properly torqued to 150ftlbs.
There is a stronger model and for putting them back on I got a torque stick that limits at 140Ftlbs.
the torque multipliers are interesting and I have concidered one but then I found the battery impact gun, I don't use my air impact gun at home any more.