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MT MSTR THRD RPR SET*SEE5626-125 - Heli Coil Products

Part #: 5525-125

The Heli-Coil 5525-125 Metric Master Thread Repair Set provides a robust and permanent solution for restoring stripped, worn, or damaged metric threads in professional automotive and industrial applications. This comprehensive thread repair kit is engineered to bring fastener holes back to original specifications, often creating a stronger, more reliable connection than the parent material itself. It is an indispensable tool for mechanics and technicians seeking durable thread restoration.

Key Features

  • Comprehensive Metric Coverage: Includes high-quality Heli-Coil inserts, taps, installation tools, and tang break-off tools for common metric coarse thread sizes, typically ranging from M5x0.8 to M12x1.75.
  • Superior Thread Strength: Utilizes precision-formed helical inserts made from corrosion-resistant stainless steel, ensuring a stronger, wear-resistant thread that withstands high-load and high-vibration environments.
  • Durable Construction: Components are designed for professional-grade use, offering longevity and reliable performance in demanding workshop and field service conditions.
  • Vibration and Impact Resistance: Heli-Coil inserts are securely held in place by coil tension, providing enhanced resistance to vibration and impact without overstressing the surrounding material.
  • Material Compatibility: Effectively repairs threads in a wide range of materials, including aluminum, magnesium, cast iron, and bronze castings.

Applications

This versatile metric thread repair kit is essential for professional technicians addressing damaged threads across numerous applications. It is commonly used for automotive thread restoration in engine blocks, cylinder heads, transmission housings, and oil drain plugs. Beyond vehicle maintenance, the Heli-Coil 5525-125 set is critical for industrial equipment maintenance, heavy machinery, pumps, and fixtures where reliable metric threaded fasteners are paramount. It offers a cost-effective alternative to replacing expensive components by renewing damaged fastener locations and extending the service life of valuable parts.

Only 1 left in stock - order soon

$112.68

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This product was added to our catalog on Tuesday 30 June, 2026.

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