Dan Caster wrote:

My question was a lot more specific than how high is up. From the
various answers others have given it looks as if somewhere about .004
or .005 is reasonable for a drilled hole. Straighter than that and
one should plan on some other method of making the hole.

Dan

Gary Coffman wrote in message
On 2 Jan 2004 10:31:04 -0800, (Dan Caster) wrote:
So my question is when drilling a 1" deep .138 hole, how much should
one expect the far end of the hole to be from the ideal?


I'm afraid your question is in the form of "how high is up?" There really
isn't any single hard and fast number that will answer your question.

Gary

Using a proper machine and setup, your hole should easily and routinely be
within +/- .002 on the farside. Closer to +/- .001 is what I personally would
expect, spotting and drilling. Proper machine is not a drill press, and proper
setup is not a prickpunch. Have you taken a cut yet?

mj