Off course, you can also print the threads directly, screw a bolt into an un-threaded hole, or tap a hole. Following his usual rigorous testing process, [Stefan] from CNC Kitchen investigated ...

What happens when you break a tap or a bolt in a component whose price tag ... Broken tap stuck in the hole it was threading Well, that’s where [Tom Grafton] of Jerry’s Broken Drill and ...

Next, grab your extraction tool and tap it into the hole with a hammer. For this step, it's best to start with light force and work your way up so you don't cause the bolt to become even more stuck.