Review on 🔧 AB Tools M10 x 1.0mm Thread Repair Kit/Helicoil 9pc Set - Fix Damaged Threads with AN043 by Justin Herman

I used this to fix a burned out spark plug hole on a Stihl chainsaw. The drill is very sharp, as is the tap. Curve". The first 2 times the insert was about halfway in, the spool jumped/skipped on the threads, causing it to deteriorate. This insert came dry and clean. To remove it, all you had to do was gently pry the end drive in, grab the spool with a vise and pull out. For the last "good fit" I oiled the insert. Starting was no problem but DO NOT push the insertion tool in after starting. I believe the oil has it which reduced friction and allowed the spool to go all the way in without missing threads.The result was a good reliable repair.