"PrecisionmachinisT" fired this volley in
newsvudnU8Yt9sl4TTSnZ2dnUVZ_s6dnZ2d@scnresearch. com:

Usually, I make the boss on the backing plate a tad
undersize....allows a few thou of radial clearance between it and the
chuck body--then, when I mount the chuck,

Gotta think about that one. What happens on interrupted cuts?

Lloyd