I bought this for a specific task, to undo a bolt on a crankshaft. Wrongly presumed my 400nm torque wrench wouldn't stand a chance so this seemed the obvious choice.
It didn't budge it, the wrench, however, did. And it didn't register as reaching it's max torque either.
Which leads me to believe that either the gun's faulty or the big torque claims are just that.

The additional handle in this product is not fit for pupose the casting for the tensioner cracked and slipped, which when you have a impact driver of this power is potentially dangerous. I have requested a return as per the returns policy but have been ignored. I want a returns label and a full refund....