Utica steel 91-6

[Rick B.]

My Utica Steel 6" adjustable wrench. The jaws are the square opening rather than the hex. Jaws are not sloppy and the movement is smooth. Info I've found is a bit confusing as to whether the Alloy Steel model 91's came before or after the drop forged ones. Anybody know?

View media item 98335View media item 98336

 

[woody 73]

Not sure about that , I did find the 91 model in the 1950 catalog:

https://archive.org/details/UticaToolsCatalog63D1963/page/n11

Further research needed.

 

[woody 73]

Interesting I found a new re-design from the 1977 catalog.

https://archive.org/details/UticaToolCoCatalogUB77HT/page/n7

 

[woody 73]

The No. 91 from 1968 is Drop Forged from alloy steel and has induction hardened jaws:

https://archive.org/details/UticaToolCatalog661/page/n23

 

[woody 73]

Interesting reading from the AA web-site in that Utica introduced it's No. 90 (carbon steel) after 1926 and during the 1930's they began offering the No. 91 in alloy steel design. Originally the early models (No. 90) had thicker heads and longer handles. For the new Alloy steel design (No, 91), they had fixed jaw joints then milled the track of the sliding jaw in a 90 degree angle.