"mm" wrote:
You would actually use a new bit in plaster? Doesn't that dull bits
faster than almost anything else?

I use the bits I paid 69 cents for 14 of them, and I don't think my
hole is any different in diameter or smoothness than any other bit
would make.

Comments?

The point is that the bit is straight, and makes a hole the correct
diameter, which the "use a new bit" recommendation will provide for.

Jon