Reverse lockout?
 

So i've barely seen any reverse lockout threads when it comes down to switching it out. I started it today and took a 3/32 push pin into the hole but the problem is that before i tried that i used a drill bit and part of it broke into the hole, could not get it out and i kept hammering it down and got around 1/8 of the pin out but the rest just wont come out. Does anyone have any suggestions?