DIYbanter - View Single Post - CMT flush trimming bit not flush -- need recommendations for replacementbit

Chris Friesen

wrote:

Understand these (and most trimmers) are purposely undersized. Given
the cutter diameter = or than the bearing diameter and the templet
will get wasted away.

Say the bearing is 1.5mils smaller than the cutter. In 10 or 20 passes
or uses of that templet, you'll have a pattern 1/64" smaller; not cool.

In order for that to happen you'd have to be running the bearing against
the portion of the template that you cut the previous time, no? The
only way I can see that happening is if you're flipping your templet over.

If you run the bearing against the same portion of the templet all the
time, how does the templet get trimmed?

Chris