Big fan here of you and your wife big hammer! Found a great way to make a jig for stripping wire from cmhrecyeling I hope got that right! Tomorrow I will proceed to make the jig. I have one five gal bucket left of small gauge copper and alum wire...did alot of single copper wire romex style. Piece of cake! I also have a microwave waiting...muhahaha. A reward for stripping small braid copper. I had a question about the cbm's, I got of a VCR, it was copper middle with a metal bracket that looked like graphite...but didn't mark paper. But when hit it shatters..what's this? ( always wear safety glasses)