Decide where you need to drill a hole for your wires. Use the measuring tape, if necessary, to locate the proper spot for the hole.
Place a mark on the cabinet with a pencil to indicate the center point of the hole in the cabinet. Mark the location of any additional holes.
Open the drill chuck on an electric drill. Place the appropriate size drill bit into the drill chuck. Tighten the drill chuck. Follow the manufacturer’s instructions concerning drill bit installation.
Place the tip of the drill bit on the pencil mark on the cabinet. Depress the trigger on the drill. Hold the drill straight and apply gentle pressure on the drill as the drill bit penetrates the cabinet wall. Do not force the drill. Repeat these procedures for any additional wire holes.