M14 Back Tap Thread Repair Tool– Collapsible Design for Effortless Inside-Restore Damaged Threads & Expand Thread Area

Got fouled or damaged threads from old spark plugs? Don't want to drop engine-killing metal shavings into cylinders or remove cylinder heads, and avoid risky thread inserts? You need RselectMet's 14 millimeter Back-Tap Thread Repair Tool to save time and possibly your engine. Its collapsible design enables it to be placed through the spark plug hole and into the chamber. Then, a mandrel is drawn back, expanding the tool's threaded area and threading into the clean threads at the bottom of the spark plug hole. The innovative back tap repairs the damaged thread as it's drawn up through the spark plug hole, bringing debris and metal filings along.

• 【Innovative Design for Easy Repairs】:Featuring a unique design, this thread repair tool effortlessly restores spark plug threads while ensuring the cylinder chamber remains pristine and free from debris. With a precise M14 x 1.25mm thread specification and an overall length of 4-3/4” (121mm), it’s engineered for efficiency
• 【Built to Last】: Crafted from high-quality heat-treated chrome moly steel and finished with zinc plating, this tool offers exceptional durability and resistance to corrosion. The knurled thumb nut provides a secure grip, preventing slippage during operation, while its compact size makes it easy to carry and store at job sites
• 【Efficient Application】: Designed for quick and hassle-free repairs, this tool cleans and fixes spark plug threads without the need to remove the cylinder head. The innovative collapsible back-tap design allows for interior repairs, keeping metal shavings out of the combustion chamber, ensuring a mess-free experience
• 【Versatile Usage】: Ideal not only for spark plug threads but also for O2 sensor bungs and small engine applications utilizing M14 spark plugs, this tool is a must-have for automotive enthusiasts and professionals alike. Experience seamless repairs with this versatile tool
• 【User-Friendly Operation】: Whether you're a seasoned mechanic or a DIY enthusiast, our thread repair tool is straightforward to use. Its effective design simplifies the repair process, making it an essential addition to your automotive toolkit