Have used these products before. Go step by step and watch what you're doing and you'll fix a threaded hole better than the original.
π§ HeliCoil Helicoil 5546-6: High-Quality Metric Coarse Thread Repair System
10 Review
Thread Kits 1221-309 Thread π§ Repair Kit: Fix Stripped Threads with Ease
11 Review
Helicoil 5546 8 Metric Coarse Thread
11 Review
π‘ Helicoil 5521-5 5/16-18 Inch Coarse Thread Repair Kit: The Ultimate Solution for Thread Repair
10 Review