metal fatigue on the VAR tool? WOW that tool is IMHO a built over built for the cause and I doubt it incurrs much stress during use.
most likely the tool is hanging there and he does not know how to use it.
well of course I can't find the tool online anywhere to ensure I am thinking of the correct one but I certainly would not worry about the age of the tool and stressing it.
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“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk