I use a 1/4" diamond tip core drill bit to make holes in the bottom of bowls to use them as plant pots with drainage. I bought the diamond core drill bit to drill ceramic bowls, however I also used it to drill 1/4" into plastic bowls, and this was a mistake. The plastic is wedged so tightly inside the bit that I cannot get it out. I have tried getting it out with an awl, a safety pin, a nail, a knife, etc. and no luck.
Any ideas? All I can think of is to secure the bit in a vise, and try to drill out the plastic with a smaller bit.
Best Answer
I would first try driving a screw into the plastic and then pulling it out. You could clamp the screw in a vice and pull on the bit so that you don't damage the bit with the clamp.
If it's tightly wedged in it might be easiest to drill out the center of it with the largest bit you have and then crack/break the rest of it out.