I do a little gunsmithing, and yup, you can break them with a punch in a blind hole, typically it's when tapping scope mount holes. It is pretty easy.
I'll also say I have given up all hope of easy-outs working as well. My preferred method is drill it with a pretty small bit, then start moving up in size till you get to the tap drill size, then run a tap in it, it has always found the threads if the old bolt didn't come out with the drill. The plan B is to go up to the next size with a fresh hole. I have used left handed bits when I have them, I have done more with right handed bits than left, still works well. The downside is when it happens in a situation where you can't get to it to drill it ice and straight. I pulled a 390 out of a 76 F-250 to extract an exhaust manifold stud. Better then completely screwing it up.
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Today's Featured Article - Identifying Tractor Noises - by Curtis Von Fange. Listening To Your Tractor : Part 3 - In this series we are continuing to learn the fine art of listening to our tractor in hopes of keeping it running longer. One particularly important facet is to hear and identify the particular noises that our
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