> >I bought a set of Whitworth tools from Snap-on years ago
> when I was
> >attempting to restore a Bentley (automobile). If memory
> serves, they
> >were
> >call "British Standard" sizing. You might try this link:
> >
>
>http://buy1.snapon.com/catalog/item.asp?P65=&tool=all&item_ID=5336&
> >group_ID=
> >567&store=snapon-store&dir=catalog
>
> Here's the link not wrapped: http://tinyurl.com/
>
> I believe Whitworth refers to the thread form, which is 55°
> instead of the
> more common 60°. Also, British wrenches (sorry, spanners)
> were described by
> the body diameter of the bolt, not the measurement across the
> flats of the hex head, like SAE and Metric.
>
> John Betmanis
> Woodstock, Ontario, Canada
John, What you wrote is correct, but the result of this system is that you end up with strange values across the the flats - e.g. things like 19/32". Fred Rednor - Arlington, Virginia (USA)
____________________________________________________________________________________
Yahoo! oneSearch: Finally, mobile search
that gives answers, not web links.
http://mobile.yahoo.com/