My theory is that since Armstrong was a part of Apex who also owns Gearwrench we will continue to see Armstrong looking stuff because their tooling still exists.
From Wiki:
In 1994, Armstrong was acquired by the Danaher Corporation, where it operated as its industrial hand tools division.
In 2010, Armstrong, as part of Danaher Tool Group, became part of Apex Tool Group, LLC. In 2017, Apex announced that it would layoff 170 workers at its Sumter, South Carolina plant and cease production of the Armstrong and Allen brands by March 31st.