Private Lugnutz
Well-known member
Snap-on and Herbrand definitely used Pyralin. They proudly cited it in their catalogs.
Back in 2017 I said that Duro did, too, but I did not cite catalog references, and, after double-checking the 1939, the 1941, and the 1950 catalogs, I can find no reference to the composition of the plastic used in Duro-Lite (amber) or Duro-Grip (black) handles. However, I did find a reference to Pyralin, for amber handled screwdrivers, on page VIII of an Indestro Price List dated August 27, 1948. I think that strongly suggests that Duro -Chrome was also using it.
We should remember that survivability is also highly affected by humidity and environment. Generally speaking, that comes down to how and where they were stored before we found them.
Back in 2017 I said that Duro did, too, but I did not cite catalog references, and, after double-checking the 1939, the 1941, and the 1950 catalogs, I can find no reference to the composition of the plastic used in Duro-Lite (amber) or Duro-Grip (black) handles. However, I did find a reference to Pyralin, for amber handled screwdrivers, on page VIII of an Indestro Price List dated August 27, 1948. I think that strongly suggests that Duro -Chrome was also using it.
We should remember that survivability is also highly affected by humidity and environment. Generally speaking, that comes down to how and where they were stored before we found them.
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