On Mon, 16 Feb 2015 10:40:19 -0600
Leon lcb11211@swbelldotnet wrote:

A two bearing bit, top and bottom, is a convenience thing. It is
some times easier to use one or the other depending on the
orientation of the bit to the work and or pattern.
Typically a straight cut bit with a bearing is a flush cut bit.

I've not seen a straight cut bit with a bearing at top only so
the definition should be a straight cut bit with a bottom bearing
and may also have a top bearing with a collar to secure it.

Well that is not entirely true. If you are flush cutting veneer or

true doesn't have gradations

i turned the light not entirely on

laminate a 1/4" flush cut bit is more than adequate. and those are

a laminate 1/4-inch shank flush cut bit that doesn't deflect under
no load is adequate

more adequate or more better

The smaller the diameter of the cutter portion of the bit the faster
you need to run. Once you start using bits that have a 1" or greater
cutter you need to slow down the router speed.

or once you start using bits that deflect under no load