I didn't see this thread until now.
If you're wondering if it's military because of what you're calling "old Army drab green" finish remains, painting automotive hand tools (i.e., end wrenches, pliers, hammers, etc) OD green was not a common practice. Special tools were often painted OD green (e.g., jacks, tire irons, hub pullers, etc), but they didn't paint mechanics' tools as a rule of thumb. Despite the popularity of painted tools in MV kits at MV shows today, which is considered a garish uninformed mistake. That's not to say an OD green tool doesn't show up from time to time in a special kit, but by far the most common finishes were plain steel, cad, or black oxide, and when hand tools were painted (including some pliers, but especially pipe wrenches), it was usually black enamel. In short, I'm not saying it's not military. By the same token, that green is highly unusual, not a "tell."
As for the age, the herringbone grip pattern on the handles date it to no earlier than 1942.