{"product_id":"dptool-14mm-back-tap-spark-plug-thread-repair-tool-m14x1-25-5-27-in-length","title":"DPTOOL 14mm Back Tap Spark Plug Thread Repair Tool M14x1.25, 5.27 in Length","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eThe DPTOOL 14mm Back Tap is a purpose built tool designed to repair severely cross damaged spark plug hole threads in M14x1.25 cylinders. It enables thread restoration without removing the cylinder head or installing a coil insert, offering a practical option for field repairs and professional shop work alike.\u003c\/p\u003e\u003cp\u003eDesigned to focus on the thread and bore, this tool can help reestablish a clean, usable path for future maintenance. A straight, controlled cutting action helps rethread the hole with precision, preserving the overall integrity of the bore while minimizing downtime.\u003c\/p\u003e\u003ch3\u003eKey benefits you may notice\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRepair capability for cross damaged threads while keeping the bore clean and intact.\u003c\/li\u003e\n\u003cli\u003eGrease on the threaded portion traps metal shavings and allows removal with the tool, reducing debris in the cylinder.\u003c\/li\u003e\n\u003cli\u003eMade from high quality 42CrMo steel, offering strong, tough performance with good wear resistance and fatigue endurance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy choose DPTOOL 14mm Back Tap\u003c\/h3\u003e\u003cp\u003eThis tool is built to withstand repeated use in automotive environments. The material is described as equivalent to 4140 steel, combining high strength with reliable toughness, even in challenging temperatures. The hardened and tempered design helps maintain dimensional stability during threading work, supporting precise outcomes without obvious brittleness.\u003c\/p\u003e\u003ch3\u003eWhat you get and how to use\u003c\/h3\u003e\u003cp\u003eThe tool is 5.27 inches long, designed to work with M14x1.25 spark plug threads. It is intended to repair threads and create a secure path for rethreading, while avoiding the need for cylinder head removal or coil inserts. A structured approach to use helps manage resistance and reduce the chance of snagging.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInsert the tap straight through the hole, then expand the thread path and back-thread 3 to 5 times.\u003c\/li\u003e\n\u003cli\u003eWhen turning becomes tougher, back off and resume in a controlled manner, turning slowly and evenly to reestablish the cut.\u003c\/li\u003e\n\u003cli\u003eIf you encounter a hard patch, back up slightly, then proceed forward again while keeping a steady pace.\u003c\/li\u003e\n\u003cli\u003eOld shavings and debris can be removed along with the tool; follow with a final bore inspection.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications and warranty\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eThread: M14x1.25\u003c\/li\u003e\n\u003cli\u003eLength: 5.27 inches\u003c\/li\u003e\n\u003cli\u003eMaterial: 42CrMo steel\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eDPTOOL offers a 12 month warranty. If any quality issue arises, you may be eligible for a refund or replacement according to the policy.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What is the DPTOOL 14mm Back Tap used for?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It restores spark plug hole threads and cleans the bore without removing the cylinder head.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the tool prevent metal shavings from entering the engine?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the grease design traps shavings and reduces debris entering the combustion chamber.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"DPTOOL","offers":[{"title":"Default Title","offer_id":42465768603733,"sku":"B0D3QG2MTY","price":30.07,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/dptool-14mm-back-tap-closeup.jpg?v=1778022182","url":"https:\/\/plentytorque.co.uk\/products\/dptool-14mm-back-tap-spark-plug-thread-repair-tool-m14x1-25-5-27-in-length","provider":"PlentyTorque","version":"1.0","type":"link"}