>I think they use them for vias, and those "only in one layer" vias.
> Based on new prices I figure if I can use about 1 in 20 it's a deal.
> With care in selection, I seem to average about 5 in 20 usefull. It
> is suprising how many realy tiny ones I get though. Since these
> are "used" bits, sombody must have "used" them, but I can't imagine
> what they use the #80 size for (about 13 thou).
>
> -Denny
>
>
(sorry i forgot the name)
I can buy them for about eur20/100 drills at ebay.
but there i can select the sizes, so you can use every drill bit.
Some of this companies, like HF, are not always really cheap in the end.
st