5-piece spark plug thread repair kit M14 x 1.25, spark plug rethreading kit, cylinder head rethreading kit with 4 inserts

【Kit Contents】The kit includes a 14mm 12-point thread reamer compatible with a ratchet or 3/8-inch wrench, as well as four blades in different sizes: 3/8", 7/16", 1/2", and 3/4". These comprehensive and easy-to-use tools are indispensable.【High-Quality Material】Made of high-quality chrome vanadium steel, our spark plug thread repair kits are oxidation and corrosion resistant and extremely durable.【Thread Repair】Repairing spark plug threads is a breeze with this kit. The thread cutter restores damaged or chipped spark plug threads, restoring the spark plug configuration to aluminum heads.【Easy to Use】Simply check if the spark plug heads are aluminum, and this kit will do the job. For added convenience, you can also use threadlocker (not included). [Application] This M14 x 1.25 thread repair kit is ideal for spark plug repair.