CTA Tools 98141 Pro-Thread 14mm Spark Plug Repair Kit， Tapered Seat<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Allows You to Repair Tapered Seat and Gasketed Spark Plug Ports</li><li>For Use on Aluminum and Cast Iron Heads</li><li>Kit Includes a Tap， Installation Tool and 3 Inserts</li><li>Heavy-Duty Construction Ensures Durability</li><li>Insert Sizes:1/4-Inch， 3/8-Inch and 5/8-Inch</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41b3hIOIWrL.jpg" noproxy>