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C172 Beryllium Copper

C172 is very similar to C173.  The main difference is that C172 does not contain lead like C173. As such, it doesn't machine as easily. These are both useful, though more specialized, metals.
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DFARS 5052 Aluminum

For years it's felt like DFARS 5052 aluminum is as hard to find as a real, live, unicorn. But no more!

How-To Make A Teardrop Trailer

Just in time for summer, make your own custom teardrop trailer!