I have stripped out the threads in a 1/4" bolt hole in an aluminum transmission case. I can't get a drill in there to be able to use a heli-coil type of insert, and I have decided to use JB Weld to repair this as the bolt that goes into this stripped hole just locates a bracket which read more...In article: repairing stripped threads with JB Weld
What metal (or other fairly common substance) retains COLD the longest? I was thinking of experimenting this hot Summer with placing various chunks of metal in my freezer and...more or less using them like ice. Putting them in my cooler and seeing if they kept items nice and cold --without the side effect read more...In article: Question About Cold Retaining Metal
I suspect an old kitchen cutting board I have is Delrin. Is there any way to tell ? ( no markings that I can see ... ) It is about 1/2 inch thick and kind of milky-translucent. Also, edges melt and harden very smooth when touched with hot pots, etc. read more...In article: how to tell if cutting board is Delrin ?
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