I got bored today and decided to try to drill out my Colt's sear block. I tried a search here, but all of the links to the "hydraulic" method for removal of the blind pins were dead or too old. I have the two large blind pin style block, BTW. Also any ideas on bits that I can use to drill these out? I've tried titanium nitride coated and can't make a dent in the block or the pins.
If anyone has any other removal methods that worked for them, I'd like to hear them.
So far I'm thinking of either the hydraulic method (drill hole between the pins,fill with oil, and use a punch to pop the pins out) or possibly trying to drill and tap the pins themselves.
Anyone with experience feel free to advise or criticize.
Thanks in advance.