On Dec 26, 2:42*pm, "Garrett" > wrote:
> "AD" *wrote in message
>
> ...
>
> What's the purpose of 12 points? (given that they are more likely to
> damage bolt heads I got to ask!)
>
> I nearly always see them on box end of open closed combination
> wrenches
> and 12pt sockets are not uncommon also.
>
> Why would anyone need a 12pt socket???
>
> Six points are useless on Boeing, Airbus, Douglas, Lockheed etc. *Lot's of
> 12 point bolts/nuts on
> commercial aircraft. *I haven't got a six point socket in my flight line
> tool bag.

meaning that you can't use open end of the combo wrench on those
fasteners, right?