good tip. works well! i have another tip! if gravity drops any of the loose particles downward as gravity (or density if your a flat earther) usually does, you can use compressed air to blow the threads and holes out incase any particles dropped unseen in a blind hole. good video thumbs up.
life saver! looking for a m27x1.5 and m10x1.5 chaser and they are so expensive and for something I'll only use once! suddenly thought of this and want to see if anyone has tried it so thank you!
Don't do this. The old bolts stretch when torqued so you're chasing a thread with the wrong thread. If you MUST use this "tip", use a NEW bolt. Or just buy a tap and do it right.
I follow your reasoning, but the bolts don't stretch very far so the threads still line up just fine. Also, this couldn't cut metal if I wanted it to. It's really only good for cleaning out the crud.
FIrst, this is a brilliant tip. I mean, actual taps have those same ridges, ya know? But 100% agree with lazzer408. The metal that taps are made of, will always be 'harder', which also means LESS tensile strength due to lack of malleability. An extreme example would be glass. No knife can ever rival the sharpness of a broken piece of glass, unless you simply smash the piece of glass with the metal lol. So I think not only do regular bolts indeed warp and stretch over time, they do so BY DESIGN!, I'm considering trying your trick, with one little extra step: once the triangle shaped ridges are machined out of the bolt, I would use a diamond hone, or a tiangle file, or anything designed for sharpening metal, and just gently run it along the newly formed upper corners of the (negative) triangle. I think this would not just remove dirt, but would cut off slivers of metal that had been warped a bit. Thanks again!
They stretch at the other end of the bolt where the hex head is so it doesn't matter since the bolt being used as a tap is using the threads at the other tip which are not stretched.
