Reminds me of this old 1/2 HP dinosaur I got from a friend of my Grandfathers. I think the name on the plate is "US Electrical Tool Co.". Looks (and feels) like a jackhammer and takes about 30 seconds to wind down when you turn off the switch. About threw me through the wall first time I turned it on.... Last use was drilling holes in railroad ties for a wall about 40 years ago...
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View attachment 1576367
I actually had one of those, but a slightly older version of it, from my Grandfather. I'm guessing mine was older anyway, as it had two threaded pipe handles instead of one cast trigger handle like yours, which I believe were OEM, as they were nicely machined and knurled shorties. The reason I kept the one I photo'd above, instead of this version, was that my grandfather's had a toggle switch. As in on/off,
not momentary, click-click toggle switch.
One time the thing grabbed during use, and I'd have broke both wrists if it hadn't tossed me. Thanks to the toggle switch, it started just cork-screwing the long power cord, until I managed to get it unplugged. After that, I replaced the bang/bang switch with a momentary, but it was kind of a hokey setup.
The Craftsman Industrial unit I photo'd above has a standard modern regular trigger pull with thumb lock button, albeit single speed only.
I almost never use these big drills anymore, in fact I think this week was the first time I'd used that big Craftsman since moving 13 years ago. I have a modern Milwaukee hammer drill that is infinitely faster and lighter, for 99% of my masonry-drilling needs.
