General description The 5pcs Spark Plug Thread Repair Kit M14 x 1.25 is designed for easy and effective repair of stripped or damaged spark plug threads, particularly in aluminum cylinder heads. This kit simplifies the process of rethreading, making it accessible for anyone without the need for complicated tools. Technical specifications Thread size: M14 x 1.25 Includes a 14mm 12-point tap reamer Compatible with a 3/8 drive ratchet or wrench Blade sizes: 3/8", 7/16", 1/2", and 3/4" Usage To use the kit, ensure that the spark plug heads are made of aluminum. The kit allows for cutting new threads to repair damaged configurations. For added effectiveness, a thread-locking agent can be applied (not included). Other information The socket includes a metal retainer to hold the plug during installation and removal.