little OT : drilling pcb's

[Haible Juergen]

	>I etched 12 PCB's the last two days, and now I'm going to drill
them.
	>The problem is : the drill grows blunt after 20 - 30 holes, and I
have to
	>take
	>a new one. I use expensive 1 mm HSS - drills, which should work, in
my
	>opinion.
	>
	>Anyone any idea

Probably too late for you, as you already etched the whole bunch:

Use the cheaper PCB material (yellowish - brown) whenever you can. 
Better for your health, and better for your drills.

There are hard metal drills, of course, but they will also break more
easily.

JH.