Powerbuilt 640811 14mm Back-Tap Thread Repair Tool<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Back-Tap's patented collapsible design allows it to engage be placed through the spark plug hole and into the chamber</li><li>The Back tap repairs the damaged thread as it is drawn up through the spark plug hole</li><li>Made in USA. Meets or exceeds ANSI standards.</li><li>Back-Tap 14 millimeter thread straightening tool for spark plug fouled threads</li><li>Collapsible design allows it to engage be placed through the spark plug hole and into the chamber</li><li>Expands the tool's threaded area and threading into the clean threads</li><li>Backtap repairs the damaged threads as it is drawn up through the spark plug hole</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41jmsH-j6DL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51ejqPnrgYL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51u1CQxQoEL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31JqkDPU0DL.jpg" noproxy>