BAMPRO T71293 14 and 18-Millimeter Spark Plug Hole Thread Chaser ReviewbP PP AMPRO T71293 14 and 18-Millimeter Spark Plug Hole Thread Chaser PSpark plug hole thread chaserPFor 14 and 18 millimeterPCleans any standard deep socket thread from dirt, carbon buildup, and metal particlesPHexagonal section with neoprene bandsPEnd specially shaped for easy startingP