DPTOOL 14mm Back Tap Spark Plug Thread Repair Tool M14x1.25 Thread Chase Tap Kit 2 Pack Length 5.27″ and 10.3"

Must Have Tool for Repair Spark Plug Threads: Used to fix severely cross damaged spark plug hole thread, cleaned up the threads without leaving scraps in the bore, no need pull cylinder head, no need coil insert

No Shavings Drop Into Engine: Used grease on the threaded, so that it will trap any metal shavings within it and pull out with the device rather than drop into the cylinder chamber, not worry about stuff going down into the engine

Material: Made of high quality 42CrMo steel, its material is equivalent to 4140 steel, with high strength and toughness, good hardenability, no obvious tempering brittleness, high fatigue limit and multiple impact resistance after quenching and tempering, and good low-temperature impact toughness. Therefore, it is more durable hard to damage, is a nice heavy and precise tool

Short and Long SIzes: It contains 2pcs spark plug thread repair tools, detail size is: M14x1.25(5.27" length); M14x1.25(10.3" length), will be suitable for more models of vehicles

Tips: Put it straight through the hole, expand it, back thread it 3-5x. Then reverse it in reverse, especially when it started getting tougher to turn, turning from side to side from time to time, at the same time, during the whole process, Just be sure to go slow. When u hit a hard patch, back it up a little then go forward again. After repeated operations, it is easy to remove the remaining material