> For many purposes 'high speed steel' drills are liable to be good
> enough and are much more forgiving

HSS have just about no life at all with FR4, particularly the smaller
diameters, 0.5 - 1mm used for component holes. They blunt after
a few dozen holes. I'd not recommend them for anything but very
occassional use. If you've many 3mm holes to do then cobalt or
tungsten carbide are much more economical in the long run

> You don't want to handhold a drill when using small TC bits

I find the complete opposite to be true, but maybe it's the bad
experiences I've had with poor drill presses. I can't recall ever
breaking a bit when hand-drilling. You do get a better feel for
what the bit is doing

Joe

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