--- In
motm@yahoogroups.com, "mate_stubb <mate_stubb@y...>"
<mate_stubb@y...> wrote:
> I'm probably too anal about it, but when I drill panels for folks I
> start with a center punch, then progress up through 5 bit sizes to
> keep the amount of metal being removed at any one time to a
minimum.
> That way I don't have to tape the front.
>
> When drilling MiniWave LED rows, I cheat - I had a steel template
> made that I can just clamp over the panel to ensure that the holes
> are lined up.
>
> Moe
If you want a good center punch check out this cool product:
http://www.ezlok.com/center.htmYou pop in a magnification lens with crosshairs. Line it up with your
center. Pull out the lens, slide in the punch which shares the same
centerline as the crosshairs and give it a tap with a hammer.
Unfortunately since I work in a metrology lab my standards of anal go
well beyond .002" though.
Peter