Take your time and you get good results - KIDD Innovative Design Threaded Receiver Pins With Countersink

Worked nicely for securing my trigger assembly to my TacSol receiver. Used my hand-held Makita drill and just took it bit by bit, checking as I went with the screw in one side of the threaded pin (hand tight only!). I also used Tap Magic for keeping the drill bit lubed and biting into the aluminum. Definitely a nice upgrade at a good price, and no more sloppy pins to have fall out when disassembling.