What bits do you all recommend for doing the isolation routing? Drillbitsunlimited has a pretty good selection but I am not sure which bits are the most useful and I really don't have extra cash to order them all. I mostly do through-hole PCBs using standard DIP, T220, and discrete parts. Would the 30 degree bits be the logical choice?
The same for drill sizes, which are the most used sizes?
What speeds and feeds are recommended for the isolation routing?
Thanks,
Robert