Estwing Manufacturing Company

Estwing Manufacturing Company was founded in Rockford, Illinois in 1923 by Ernest O. Estwing. Estwing was an immigrant from Sweden who settled in Rockford with many other Swedish immigrants.

Estwing manufactures striking tools such as hammers, axes, pry bars, bricklayer’s tools, roofer’s tools, geologist’s hammers, and various specialty striking tools. Estwing products are constructed of a single piece of hardened tool steel.

More info at

https://www.estwing.com/pages/about-estwing

https://en.wikipedia.org/wiki/Estwing