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🔩 Fix it right, fix it fast—because stripped threads don’t wait!
The Heli-Coil 5521-6 is a professional-grade 3/8-16 coarse thread repair kit featuring 12 durable inserts, a precision tap, and installation tool. Designed for quick restoration of damaged or stripped tapped holes, it combines high-quality materials with user-friendly instructions, making it an essential tool for automotive and mechanical professionals seeking reliable, long-lasting thread repairs.
| ASIN | B0002SRDVE |
| Best Sellers Rank | #178,230 in Automotive ( See Top 100 in Automotive ) #117 in Thread Metric Inserts & Repair Kits |
| Brand | Helicoil |
| Customer Reviews | 4.7 4.7 out of 5 stars (438) |
| Date First Available | October 10, 2006 |
| Exterior | Smooth |
| Item Weight | 4 ounces |
| Item model number | 5521-6 |
| Manufacturer | Heli-Coil |
| Manufacturer Part Number | 55216 |
| Model | 5521-6 |
| OEM Part Number | 5521-6 |
| Product Dimensions | 5.8 x 0.6 x 3.6 inches |
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