Did the discontinuation of date codes coincide with the change from Blue Point to Snap-on?
Did all the wrench patterns, OE, DBE, combination, change at the same time?
Reason I ask is I've got sets of industrial finish wrenches sold at the same time in the late '60s or early '70s and the OE and combinations are later pattern, but the DBEs are the earlier stamped shank pattern. Alloy artifacts doesn't seem to have photos of this style shank on the DBE, so here's an OE for illustration.
When would the change to smooth shank DBE have occurred?
jack vines