Review on Lisle 65030 Spark Plug Hole Repair Kit Thread Inserts - Pack of 5, 11/16 by Tyler Cooley

I was making spark plugs for my 2000 V10 Ford and one spark plug came out with an insert. There was no way to get it off without damaging it, so I looked all over town for the right one and no one had the right one. I've been looking for a while and came across this one that says it's 14 x 1.25 inside and 18 x 1.25 outside which is exactly what I need. When he got here, my truck was up and running in five minutes!