H-M Supporter - Sustaining Member
- Jan 2, 2014
our automobile oriented machine shop used hex shaped carbon rods, submerged in a jury rigged puddle of kerosene to erode hex shaped holes through whatever was broken off inside some threaded holes of very expensive parts. Once the hex hole was developed, an Allen wrench would unwind the stub.
How long did the machine take to make a hex socket deep enough for an allen wrench? we're talking hours, right?
Oh and how big of hex?