... collapse due to the fault but jammed the drill rods and a section of the drill string and bit was left in the hole. Drill hole SM20-10 was designed ...
Wire. Radio shack and others sell wire "kits"of different lengths or a spool. ... with solder and a single strand of copper wire ... if you learn how to solder first ... some .22mm silver bearing solder, a de-soldering iron, a nice set of ...