Thanks for the info. The alloy artifacts web site is a gold mine of
information!
Doug
On Sun, Jul 14, 2013 at 2:12 PM, Todd Walke <racertod@racertodd.com> wrote:
> Doug wrote:
>
> Looks like it's the old school method of marking the fastener size
> on the wrench, not the size of the wrench opening as is done now.
>
> http://home.comcast.net/~**alloy-artifacts/table_oe_**wrench.html<http://home.comcast.net/~alloy-artifacts/table_oe_wrench.html>
>
> There were three standards for nuts and bolts: SAE, USS (US
> Standard) and Hex Capscrew. A wrench with the same size opening might have
> three different size indications for each of the three standards. This
> confusing system was phased out in the '20s in favor of the current
> across-flats size markings.
>
> So your wrench was made to fit 3/4" and 7/8" diameter Hex Capscrew
> bolts/nuts.
>
> <http://www.**practicalmachinist.com/vb/**antique-machinery-history/**
> wrench-marked-fraction-**hexagon-c-208893/<http://www.practicalmachinist.com/vb/antique-machinery-history/wrench-marked-fraction-hexagon-c-208893/>
> >
> <http://home.comcast.net/~**alloy-artifacts/billings-**
> spencer-company.html<http://home.comcast.net/~alloy-artifacts/billings-spencer-company.html>
> >
>
> Todd
> Seattle,WA
> '86 GTI, Red of course. (exciting racey car) 276,000 miles
> '01 Golf TDI, silver. (new work car) 412,000 miles
> '87 Golf, Polar Silver. (retired work car) 654,000 miles <- Gone to a
> new home :(
> http://www.pureluckdesign.com <-Ferrari & VW stuff
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