Make a physical mold used for mass-production from plaster and wax.
Splices conductor cables used to lower electrical testing or surveying instruments into oil or gas wells or boreholes, using handtools: Unwraps armor strands from end of cable. Strips insulation from stranded conductor cable, using stripping pliers. Cuts ends of conductor cable, using pliers. Clamps cable ends together in vise to form butt joint. Solders joint, using silver solder and iron. Wraps joint with insulating tape to form smooth insulation of same diameter as original cable. Wraps armor strands over joint. Trims ends of armor strands, using cutters, to form smooth butt joints and solders joints, using silver solder and iron. May test conductor cables, using equipment, such as voltmeters and capacity and resistance bridges.