● PURPOSE BUILT: The installation tools in this helicoil kit are constructed from high-speed steel for superior handling while the inserts are heated-treated 45# steel for greater strength and longevity in place.
131Pcs Metric Thread Repair Insert Kit M5 M6 M8 M10 M12 Helicoil Pro Coil Tool
131PCS Metric Thread Repair Kit HSS Drill Helicoil Tap Insertion Tool Set
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131PCS Metric Thread Repair Kit | HSS Helicoil Set for M5 M6 M8 M10 M12 | Engine
131pcs Helicoil Metric Thread Repair Kit, HSS Drill Thread Insert Repair Tool...
131Pcs HSS Thread Repair Kit Drill Helicoil Metric Set Heli Coil Tap Insert Case