Lubricates and cleans prosthetic arms Lubricates metal joints on pool cues Removes scum from bottom of drinking glasses. Then wash with soap and water Lubricates tuning gears on guitars Lubricates flagpole pulleys Lubricates dog nail clippers Lubricates robot joints Loosens arm and leg joints on porcelain dolls Lubricates gears on earth-moving caterpillar tractor Lubricates shaft of slot machine coin receiver