I guess I should have included that the thickness of the disc is 1/4" at
the most. I'll try slowing down the press to see if that helps.

Woody wrote:
Yes, lower the speed and slow down your feed rate during the cut.
Helps to also withdraw the bit now and then to stop burning and clear any
chips that may wedge the bit and wood together causing it to catch.


--
Regards,

Dean Bielanowski
Editor,
Online Tool Reviews
http://www.onlinetoolreviews.com
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"Thomas Mitchell" wrote in message
...

I bought some 'wood' discs that are about 1" in diameter. I want to
drill a 1/4" or so hole in the middle of the disc. Using a 1" forstner
bit I drilled a depression in a piece of MDF for the disk to sit in. The
disc fits nicely in the depression and I don't have to worry about
holding the disc. I tried drilling the middle hole with a 1/4" bit. The
drill started nicely but then the disc started spinning and burning the
mdf and itself. The disc actually spun onto the bit as the bit was
raised up. The hole was a mess. I tried changing to a 1/4" forstner bit
hoping the outcome would be different but it was the same.

Other than holding the disc still somehow, is there a way to resolve
thie problem? Change the speed of press maybe?


Thomas