I use carbide drills made for circuit boards, run them at 12K RPM, 0.10" peck (I am probably going to change it to 0.15", but for now, I still have gcode that is 0.10" peck) and 30IPM plunge. I can make 5 or so 4 player boards (533 holes each board) before needing to change the bit.
Could you post in this thread below so I can post my next tutorial?