On Mon, 01 Sep 2008 11:02:00 -0500, Don Foreman
wrote:

BTW, if you have a concentricity requirement for the shaft body and
machined part, you need to specify it. A shiny spiffy shop would have
machines that hold a couple of tenths but guys that might want such a
job could well have chucks that are out .005".



Its gonna be collet work. No shop would put it in a chuck


"Confiscating wealth from those who have earned it, inherited it,
or got lucky is never going to help 'the poor.' Poverty isn't
caused by some people having more money than others, just as obesity
isn't caused by McDonald's serving super-sized orders of French fries
Poverty, like obesity, is caused by the life choices that dictate
results." - John Tucci,