Posted by Janicholson on January 14, 2019 at 12:24:11 from (199.17.6.90):
In Reply to: What is it for? posted by Dave H (MI) on January 14, 2019 at 12:10:30:
If it is hard enough to fend off a screw driver assault, it may be Beryllium Copper alloy. The reason for this supposition is that Beryllium Copper is used for non sparking tools. Beryllium is a very toxic material in dust or vapor form it has no acceptable exposure level. Don't grind or polish it. There are other copper alloy materials than can be hardened, but not nearly as hard as Be/Co, which can be above Rockwell C60. Jim
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Today's Featured Article - Listening to Your Tractor - by Curtis Von Fange. Years ago there was a TV show about a talking car. Unless you are from another planet, physically or otherwise, I don’t think our internal combustion buddies will talk and tell us their problems. But, on the other hand, there is a secret language that our mechanical companions readily do speak. It is an interesting form of communication that involves all the senses of the listener. In this series we are going to investigate and learn the basic rudimentary skills of understanding this lingo.
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