The thread inserts made of heat-treated 45# steel has better toughness and is not easy to wear and deformation. Extended service life.
Pro Thread UNC Coarse Thread Repair Kit 1/2-13 Inch Thread Repair Kit
Thread Repair Kit, M6x1.0 Thread Repair Tool with HSS Drill Bit & 30 Thread I...
Thread Repair Kit M6 X 1.0mm, Helicoil Metric Thread Repair Insert Kit with H...
M10 x 1.5 Thread Repair Kit Metric Helicoil Thread Repair Kit with HSS Drill ...
5/16 18 Inch Thread Repair Kit HSS Drill Helicoil Repair Kit SAE Thread Inserts
DJYIYEW 3/816 in Thread Repair Kit, SAE Helicoil Thread Repair Kit with HSS D...
