WHITES PLUG WRENCH 12mm thread / 18mm hexThe Whites Plug Wrench is a must have tool for 4 cylinder Hondas with deep recessed spark plugs. This plug wrench allows you to reach down to those difficult spark plugs, compatible with most Hondas that use D7EA, D8EA and D9EA spark plugs. Constructed with a T handle for easy operation and a 12mm threading and 18mm hex end. Must have tool for 4 cylinder Hondas with deep recessed spark plugs Fits most Hondas using D7EA, D8EA and D9EA spark plugs