I should have said "pointless" not impossible. The bits you
pointed to are NOT the bits you asked about(chamfer) in
your first post. Many bits have top bearing but in the case
of chamfer bit, a bearing would have no place or use.


Grant wrote:

"Pat Barber" wrote Impossible... to have
top bearing on a chamfer bit.

is it?
http://www.infinitytools.com/catalog...2:topbearin g