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Vtg Single-Screw Die Holder Wrench 8" long Alloy Steel for 7/8" dia. stock USA - $20 (Fort Thomas)
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Dimensions:
- 8 inch overall length
- Underside of the center circular port: 1"
- Top of the center circular opening: 7/8"
Inside, upper lip around the center circular opening: 1/8" thick
- Wider section of the inside of the port: 1/4" thick.
- Slotted head set screw thread section: 1/4" length
Handles 7/8" diameter stock
Die Holder Wrenches have been used by machinists for many years to securely hold pieces of round profile metal stock for cutting with a thread cutter (which fits into the underside of the tool). The set screw holds the metal stock in place.
This particular tool is almost certainly of American manufacture, and is at least 75-80 years old. A nice piece for the collector!
Cash Only, no trades, Local (Cincinnati-area) Meetup.