OEMTOOLS 25648 Fix-A-Thread Spark Plug Saver Inserts, Metric, M14 - 1.25, Socket Rethreading Kit Components For Car, Truck, RV, And Aviation Repair, 14mm Thread

Functionality: Designed to help you repair damaged cylinder heads with blown spark plugs; For both taper seat and gasket type spark plug assemblies, Versatility: Features 3 insert lengths; Engineered to fit the most common spark plug reaches; Essential parts of any thread restorer kit, Resilience: High quality 18-8 stainless steel wire; Specially designed diamond shaped cross section spring thread for extra hold, Companion Piece: Requires spark plug tool for installation; For use with OEMTOOLS 25647 Spark Plug Thread Repair Kit Metric 14 - 1. 25, Specifications: Limited components of a complete 14 - 1. 25 spark plug thread chaser kit; Includes 6 M14 - 1. 25 Inserts; Drill Size 14. 25 millimeter and 9/16 inch.