Spark Plug Hole Tap replaces
Spark Plug Hole Tap replaces
Walbro 500-500Includes metering lever gauge, check valve removers for WA, SDC and HDC models, check valve installers for WA, SDC and HDC models, welch plug remover and welch plug installerA necessity on aluminum heads14mm and 18mm on one tool13/16" hex drive with O-ring