DAYUAN 131-Part Helicoil Repair Kit – M5-M12 Thread Fix

Ideal for DIY mechanics and automotive repair, this 131-piece Helicoil kit from DAYUAN restores damaged M5–M12 threads with robust, long‑lasting performance ensuring reliable fastening for metal components.

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DAYUAN 131-Part Helicoil Repair Kit – M5-M12 Thread Fix

Key Features

  • This 131-piece thread repair kit is the perfect solution for damaged or stripped threaded holes.
  • Suitable for M5, M6, M8, M10, and M12 threads, the kit creates a stronger internal thread in soft metals and protects threaded holes from wear and damage.
  • This complete re-threading tool set includes: insertion fittings, wire helicoil inserts, rotary drills, thread taps, and break-off tools.
  • All tools are packaged in a convenient steel transport case, making it easy and quick to retrieve and place the tools.
  • Coil sizes: M5 x 0.8 x 6.7 mm, M6 x 1.0 x 8.0 mm, M8 x 1.25 x 10.8 mm, M10 x 1.5 x 13.5 mm, M12 x 1.75 x 16.3 mm.

Specs

  • Brand: DAYUAN
  • Manufacturer: Yinyuan Tools
  • Model: YT-1003-blue
  • Color: Blue
  • Size: 131 pieces
  • Coil sizes: M5 x 0.8 x 6.7 mm, M6 x 1.0 x 8.0 mm, M8 x 1.25 x 10.8 mm, M10 x 1.5 x 13.5 mm, M12 x 1.75 x 16.3 mm

Pros & Cons

Pros

  • Comprehensive all-in-one kit with 131 parts
  • Strong, long-lasting thread repair
  • Wide compatibility from M5 to M12
  • Convenient steel transport case for easy organization

Cons

  • Primarily designed for soft metals; may not work as well on hardened steel
  • No power tools included; requires manual drilling and tapping
  • Price may be high for small budgets

Who It’s For

  • DIY mechanics repairing bicycles or machinery
  • Automotive technicians fixing engine components
  • Home hobbyists restoring old machinery

Pricing & Value

Current price: 40,59 € (subject to change). This kit offers comprehensive tooling and robust thread repair for a competitive price, ensuring long-lasting performance and reducing the need for professional services.

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