2 packs of 6! 14mm x 1.25. 3/8" reach (10mm) These are NOS heli coil inserts for repairing stripped plug threads. Made in USA. These are inserts only, you'll need a heli coil tap and install tool. R13
12x Helicoil 14mm Spark Plug Thread Repair Inserts #R513 14- 1.25mm Reach 7/16"
12x Helicoil 10mm Spark Plug Thread Repair Inserts #R474-4 M10x1.0mm 1/2" Reach
HELICOIL 14MM SPARK PLUG THREAD REPAIR KIT 14-1.25mm New 4971-14 1030-14
HeliCoil 14mm Spark Plug Thread Repair Kit - Size 14-1.25mm
14mm Spark Plug Rethread Thread Repair Kit Helicoil Reamer Tap Tool w/ 4 Inserts
Useful M14x1.25mm Fit for 14mm Spark Plug Helicoil Thread Reamer Tap Repair Kit
