This tool set removes broken spark plugs from 2004 and newer Triton 3 valve per cylinder engines Porcelain pusher is used to press the porcelain piece, without breaking the porcelain, farther into the plug tip Oil film present on item to prevent rust post black oxide process. Uses a tapered left-hand thread remover to pull the broken spark plug from the head. This provides space for the left hand thread remover to bite into the stainless steel plug tip so it can then be pulled Package dimension is 5.38 inches width by 8.56 inches height by 2.13 inches depth.Blow-molded storage case included