Air impacts can be set for a torque limit value and there are torque limiting extensions for the purpose. First off, most people have no need for either because it's quite easy to use the rotational method of torque which is preferred and much more accurate than a torque wrench especially on wheel lugs with oft contaminated and damaged threads. You just watch the rotation from the seat to where it starts 'rattle gunning'(in Aus that's the official name for an impact gun, a 'rattle gun'). Tapers it's gonna a be about a 1/16 -1/8th of a turn, flat seats 1/8 to a 1/4 turn, simple.
I've assembled engines with an air impact that way, most every fastener has a rotational value defined as well as torque. I can assemble and run a Small Bloc Chevy in under an hour that way.
I've assembled engines with an air impact that way, most every fastener has a rotational value defined as well as torque. I can assemble and run a Small Bloc Chevy in under an hour that way.
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