Andy Dingley wrote:

If you're in marketing though, the ability to lie through numbers
comes in. Rather than taking a sensible "grunt" rating, the temptation
is to find any number that's best on your brand regardless of its true
value. Peak instantaneous torque is an obvious candidate. Now if this

Agreed, however there is more to it than just total "grunt" - it also
matters how its delivered. Using your own example, hitting a nail with a
hammer will be far more effective than simply doing the same amount of
mechanical work pushing it against the nail.

is _too_ high, it's likely to be "real" and "measureable" but it also
wastes too much power and integral grunt in short-term bending of the
socket and drive etc., rather than anything you can use.

Indeed, and you can see this in the circumstance that Dave mentioned
above - an elastic fastening that can simply absorb the rotational
impact and then spring back, without actually turning.


--
Cheers,

John.

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