Mark wrote: (clip) The use of an extension may be mathematically sound and
'good engineering practice'. That's why it's usually a good thing to keep
many engineers away from the work (clip) Get it? Suck it up. Buy the correct
tooling.
^^^^^^^^^^^^^
Stubbornness is no substitute for thinking. djl has explained his need, and
allowed for the minor inaccuracies that could result from the use of an
extension. Let's face it--most of us do not require Bureau-of-Standards
accuracy when we tighten a bolt. But, I guess that engineers, using
accepted mechanical theory, know less than you do.