HORUSDY 300-Piece Helicoil Thread Repair Kit | Metric and SAE | HSS Drill Helicoil Repair Kit | Metric: M5 M6 M8 M10 M12 | SAE: 1/4" 5/16" 3/8" 7/16" 1/2"

This 300pc Professional Thread Repair Kit is a must-have for any car enthusiast or mechanic looking to restore damaged threads in steel, cast iron, and aluminum.

With a high impact metal case included, this kit is designed to make the repair process easy and convenient.

The set includes 129pcs wire thread inserts in various sizes, as well as 5pcs twist drill bits, 5pcs break pin tools, and 5pcs installation tools.

Whether you're fixing a small engine problem or tackling a larger repair job, this kit has everything you need to get the job done right.

The product name is "300pc Professional Thread Repair Kit".