Lisle 20200 Thread Chaser<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Double-ended for both 14mm and 18mm threads</li><li>Cleans threads in spark plug hole</li><li>Use with 13/16 inch spark plug socket</li><li>Shipping weight: 5 oz.</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41GAKZC0DkL.jpg" noproxy>