P51 Tuba Mouthpipe Dent Ball Driver/Retriever

This tool simplifies tuba mouthpipe dent removal on American style tubas without requiring unsoldering and removal of the mouthpipe tube. To use the tool, remove the driver first. Then insert the whole unit into the mouthpipe through the mouthpiece receiver. The threaded end of the cable will drop through into the valve casing. Next, slide one, two, three, etc... dent balls on the cable and attach the largest driver ball that will fit into the mouthpipe. Lubricate the dent balls with J88 Corrosion Cracker Penetrating Oil , Z6 Synthetic Lubricant or similar lubricant. Feed the dent balls and driver into the mouthpipe with your fingers. Do not try to pull them into the mouthpipe with the cable as they may mar the port edge. With a snapping back and forth motion drive the dent balls through the dent. To remove the dent balls use a back and forth motion with the flexible driver, which will push them into the valve casing. The procedure is repeated as often as required to remove the dent o