Replies

1. 
   user7596380 | Jul 28, 2020 01:09am | #1

   I do not recommend using a Forstner Bit. There are hollow bits designed to remove the threaded shanks of broken off screws that come in three or four different diameters. I believe they're available ar Woodcraft. One of those and a dowel or a grain-matched plug should be a much better solution.

2. 
   john_c2 | Jul 28, 2020 02:41am | #2

   You'll destroy the Forstner bit.

3. 
   user-7658923 | Jul 28, 2020 06:48am | #3

   Thanks for the replies guys

4. 
   DRBWWing | Jul 28, 2020 10:52am | #4

   A plug cutter type bit for screw shank extraction would be your best bet.

   Then plug with a dowel and start over.

5. 
   geedubbee | Jul 28, 2020 12:31pm | #5

   Drill around it and dig it out. Roughly plug the hole so the Forstner has a guide point and go at it.

6. 
   Deleted | Jul 28, 2020 06:07pm | #6

   “[Deleted]”

7. 
   user7596380 | Jul 28, 2020 06:14pm | #7

   Here's the type of bit I was recommending that Rockler [rockler.com] tossed over my transom today. They call it a Screw Extractor Item #GRP2354 and it comes in three sizes - ¼", ⁵/₁₆" and ⅜".

8. 
   fivebirdscustom | Jul 28, 2020 07:11pm | #8

   You can make a simple version of a screw extraction bit using a piece of aluminum or brass tubing.. Just file some teeth on the end of a piece long enough to get past the screw (or drill bit in this case).

   They don't work as nice as some of the tool company ones. But, in a pinch....

9. 
   sandeeppatel | Jul 29, 2020 10:01am | #9

   Yes, You can. A carbide drill will drill through a hss drill and spring steel but they are amazingly brittle and not suitable for uneven jobs as they will shatter. I've used plenty and they will drill through case hardening like a razor.

10. 
    planewood1 | Jul 29, 2020 07:36pm | #10

    Easy way to get the drill out - if it won't ruin your project, drill a pilot hole from the opposite side of the piece directly on center of the broken one. Go slowly when near hitting the broken drill. Once you hit the other drill, back out, get a small drift pin, nail, other broken drill, etc, and drive the broken one back out the hole. You actually don't have to hit the broken drill with the opposite drill. Stop a bit short (1/64 or so) and drive whatever your using as a drift pin right through the remaining web of wood at the bottom of the hole and smack that broken drill right out of there. If needed, plug the hole, and get after it again.

11. 
    _mj_ | Jul 29, 2020 10:47pm | #11

    It's a vise, not a highboy. Dig it out and get on with it. Trying not to scratch a vise is like trying to keep your new tires clean.