Blackhawk and Armstrong had a very intriguing relationship for many years. I believe it went beyond co-production/co-branding into science and engineering. Below in the thumbnails is an Armstrong combination wrench, for example.
As you can see, it's the same groove-shank design as the Blackhawk and the Blackhawk-Armstrong wrenches. Note the HI-TENSILE branding. My theory is that "HI-TENSILE" was Armstrong's version of the Blackhawk "HEXITE" branding. It was used in the same time period. It never appears on any Blackhawk tools. When it's used on Armstrong-only groove-shank wrenches, it's always in the same place as the "HEXITE" is on Blackhawk-only groove-shank wrenches.
That turns a couple things on its head, though. The HI-TENSILE marking is considered a wartime tell. It's believed to represent an alloy steel that was approved by the WPB for a composition that did not contain excessive amounts of the restricted minerals, either one of the triple-alloys or a composition of their own making. But Todd believes HEXITE was banned during wartime for the opposite reason.
Blackhawk and Armstrong had a very intriguing relationship for many years. I believe it went beyond co-production/co-branding into science and engineering. Below in the thumbnails is an Armstrong combination wrench, for example.
As you can see, it's the same groove-shank design as the Blackhawk and the Blackhawk-Armstrong wrenches. Note the HI-TENSILE branding. My theory is that "HI-TENSILE" was Armstrong's version of the Blackhawk "HEXITE" branding. It was used in the same time period. It never appears on any Blackhawk tools. When it's used on Armstrong-only groove-shank wrenches, it's always in the same place as the "HEXITE" is on Blackhawk-only groove-shank wrenches.
That turns a couple things on its head, though. The HI-TENSILE marking is considered a wartime tell. It's believed to represent an alloy steel that was approved by the WPB for a composition that did not contain excessive amounts of the restricted minerals, either one of the triple-alloys or a composition of their own making. But Todd believes HEXITE was banned during wartime for the opposite reason.
Thanks. Sorry for misstating. And yes, I'd like to see that, just to put the questions to rest.It's not a belief, I read it somewhere........I'll have to dig it up again. I believe it is in some of the adverts from '46/'47 hyping the return of Hexite Tools, noting it was not allowed during the war.

