yeah bassically adam the guns the garages have something like 3000psi behind them.
okay to do bog standard nuts up but the locking key wasn't designed to be tightend with 3000psi.
do it once okay...do it twice that locking nut aint coming off.
maths is simple.
gripping surface +pressure = result
small amount of gripping surface, the surface begins to wear away from a higher volume of pressure.
larger gripping surface more pressure can be applied.
my car had all four wheels tightend including locking nuts with a gun and when i took my alloys off for the first time destroyed the key and the nut in the process.
Words of advice to anyone reading this:
DONT do your locking wheel nut up with a 3000psi gun!
