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Ned Simmons
 
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Default Righty Tighty - But Why?

In article ,
says...
Scott Moore writes:

Most people are right-handed. More torque from a screwdriver
tightening in that direction.


Which is, of course, wrong. More torque *available* to untighten than
to tighten. I allways use a bigger wrench to loosen pipes than tighten
them.


Enough opinion. Try it on a torque meter and let us know what you find.


The human factors folks have already done the work.
According to "Human Engineering Guide to Equipment Design",
a right handed person can exert considerably more torque
(about 30%) in the CCW direction.

Ned Simmons