dpb wrote:
Phisherman wrote:
...
For testing drill press runout you can, with the power cord
unplugged, use a coat hanger chucked in the drill press such that it
lightly touches the drill press table top. When it is even all the
way around, the spindle is perpendicular to the table top. No
special tools needed!

??? I've never seen a precision-enough coat hanger that any part of
it would be straight/level enough in reference to any other that it
would be of any use as a measuring tool...

How does this work, exactly, again?????

It's the same procedure as leveling the table on an RAS to the blade. You
can use a coat hanger, a dowel, anything that gives you a reference height.

He's assuming you have a radial drill press or a table that moves laterally
and in and out I think.