unknown electric impact wrench

[garagejunkie24]

This was my grandfathers and I'm not sure if it is vintage but the only impact wrenches I can find that look similar to this are from around the 50's 60's time. I can only make out G.W. Murphy Industries and an SP with a circle around it.

I believe that is a 1'' impact wrench. I thought maybe an old Ingersoll Rand? Does anyone know what this is?

 

[kwoswalt99]

Like I said before, Portable Electric Tools brand made by G.W.ind. Aka PET tools, they also made the Hi-Power brand tools.

 

[kwoswalt99]

PET made Shopcraft brand tools, and then the brand name was changed to Benchmark. They ended up being bought by McGraw Edison in the 70's.