Homebrew PCBs

> >   
> The trick is to not try to drill the whole thing in one pass; the tip 
> gets loaded and will wander off course.
> Take a few 'pecks' with each only going 5-10 mils deeper while backing 
> the bit completely out between
> each peck and don't feed in too fast.
> 
> This is the technique used on NC machines to drill really fine (6 mil) 
> holes through 60 mil boards.
> 
> Bruce
>


I find I get the best results doing a quick jab, using a high speed carbide bit with a drill stand I built out of a little precision slide it works great. Take a moment to line it up carefully and then plunge, a carbide bit turning around 20KRPM plunges through the FR4 board like a hot knife through butter.