Stripped thread repair

Possibly a lot of you are aware of this product but it was new to me. It is called a ‘key lock thread repair’. My local machine shop guy said these are much better than ‘helicoils’ and used them to repair stripped threads on my 4 speed shifter mount. The hole is drilled out and threaded to a larger size. This is then threaded in and the pins driven down using a hammer and special tool. Seems like a good way to maintain original size threads and stronger in aluminum. I don’t see how they could possibly back out when removing a bolt.
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