Looks like greenlee or someone would make a "die" to screw on the end of a "auger typed" flexabit to sharpen it. After a few holes down walls filled with plaster in my 3 story rewire, the "worm" on my flexabit needs sharpening. I haven't tried my trusty
old 3 corner file yet, I don't want to really ruin it, but if I'm going to have to pay to much to have it professionally sharpened, I may as well buy a new one
For any that may have not run into it as of yet, plaster has a destroying effect on bits. Practically everyone I have now needs sharpening
Oh well, I guess that's one of the casualties of a rewire
If anyone has any expert sharpening advise, please let me know. I've took a week break from my rewire to do a service change, etc. I've just about got the upstairs done, getting ready for the adventure downstairs and basement
BTW, they ought to come up with a wood bit that is "plaster proof
Steve.......