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2 people found this helpful
on June 23, 2014
The impact wrench would not remove a 80 lbs/ft lug nut using a 3/8" to 1/2" adapter and 21mm socket( all impact). But it had no problem with the same lug nut, using a 3/8" 13/16" chrome socket on the bosch ( no 3/8 to 1/2 adapter) . The lug nut came off very easily.
My theory is that the adapter creates too much slop, and the wrench won't work? Doesn't know it's on a nut. Tried this test a few times- same result. The car is a toyota 4runner. The lug nuts take 21mm socket, but 13/16" is a tighter fit.
Comments or other theories welcome.