SP1 wrench

[Neals]

Can anyone ID this wrench? On the back is "N" or possibly z.  8 1/4" long. 31/32 and 27/32

[OilyRascal]

I believe "SP1" is short for "Service Pack 1".  It is a remedy you apply to Microsoft Windows operating systems when they don't work correctly.  Either end against the PC is fine.

[rusty]

Oh,oh...I applied BFH ..was that the wrong service pack?

[rusty]

Oh, the wrench....

Found other wrenches with SP prefixes associated with Independent Harvesting co, but did not specificlly find a SP1 ....

Perhaps "CTK. MFG. CO. (Chicago Tool Kit Mfg. Co.) / SP1 - - 8.25". (see R1-74)"???????
(From Saak auction, no photo tho)