Take a look at the Irwin SpeedBor bits. They have a lead screw but you can
probably shorten it or adapt to using it.

Stuart Johnson
Red Oak, Texas

In article , Gerald Ross
wrote:
Has anyone used the spiral forstner bits? I drill a 1 1/8 hole in my
bowl blanks and use the small chuck to rough out the outside (with the
tailstock support). I drill about a 1 1/2 deep hole and the forstner
bits have to be pulled back several times to clear the chips. If I could
buy just one I would try it, but have only seen them in sets of 7 bits
and so far haven't justified that much just to try something different.