Please Make Sure Of The Size You Need, There Are 4 Different Size’s ...If U Need Help, Please Ask...Thanks....This tool will NOT put you on exact TDC, it can get close, but not exact. It is for getting on compression or power stroke. It works very well, great tool if working alone. THIS IS USED WHERE 18 MM SPARK PLUGS ARE USED.  MADE FROM ALL NEW COMPONENTS. BRASS FITTINGNO NEED FOR WRENCH OR TOOLS. I CAN MAKE IN SILVER, BLACK, BLUE, GREEN, PURPLE, GOLD, OR RED, LET ME KNOW IF YOU WANT A COLOR NOT LISTED. I WILL MAKE AND LIST FOR YOU. THANKS FOR LOOKING. SHIPPING  WITHIN THE CONTINENTAL UNITED STATES IS FREE …I TRY TO DESCRIBE ITEM AS WELL AS I CAN…..BUT PLEASE IF YOU HAVE ANY QUESTION, PLEASE ASK, THANK YOU