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- Sav-A-Thread is the easiest way to permanently repair stripped 14mm spark plug holes. - Three different insert lengths come with the kit to accomodate all spark plug reaches - Positive mechanical locking feature means the insert will never come out! - The piloted reamer tap means no drilling is necessary & perfect alignment of the tapped - Includes 14mm tap insertion tool and (3) inserts. NO Drilling or machining required. Works in minutes --All types of engines.

We also carry a full line of other Helicoil products. Including individual inserts, taps, installation tools, tang break-off and drills. We carry a variety of the kits, both the industrial and pouch styles. Contact us for more information.