I should have mentioned here are some pics of a couple boards I made.
Drilled with a the Dremel and stand. No broken bits. Ever! (*****disclamer "Yet")
http://thesn1per.blogspot.com/2013/06/diy-circuit-boards-tachometer.html
Drilled with a the Dremel and stand. No broken bits. Ever! (*****disclamer "Yet")
http://thesn1per.blogspot.com/2013/06/diy-circuit-boards-tachometer.html