Restore stripped or cross-threaded holes instantly with this helicoil repair kit built for precise metric and SAE fastener fixes.
- You receive 338 pieces covering SAE sizes (1/4"-1/2") and metric threads (M5-M12) to match virtually every bolt specification you service.
- You drill and tap directly with hardened HSS bits and bearing steel tools rated to HRC 55-62, while the 304 stainless steel sleeves deliver permanent anti-corrosion repairs.
- You secure tight-fitting replacements safely in aluminum, iron, steel, bronze, and magnesium castings without removing major assemblies from engines or machinery frames.
- You organize every component inside the molded carrying case, which holds step drills, insertion mandrels with rubber grips, tang cutters, and a hex wrench for immediate shop use.
