131pc Professional Thread Repair Kit Restoring Damaged Threads. Ideal for restoring damaged threads, suitable for engine and other automotive applications. High impact metal case included. Thread repair kit is ideal for restoring damaged threads, making it perfect for engine repair and other automotive applications. It contains 131 pieces, all made according to professional standards, including one HSS tap and one HSS drill for each size, two insert tools for each size, and thread inserts for each size. The kit comes complete in a handy storage case, making it easy to store and transport. The tools are packed in a convenient steel carrying case, making it easy and fast to collect and place the tools. Thread repair kit is made of highquality materials, ensuring that it is durable and longlasting. It is designed to be easy to use, making it suitable for both professional and amateur mechanics. Thread repair kit is a costeffective solution for repairing or replacing damaged or stripped internal screw threads. It is a great way to save time and money, as it eliminates the need to buy new parts. The thread repair kit is a great addition to any toolbox. It is a musthave for any mechanic, as it can help to quickly and easily repair or replace damaged or stripped internal screw threads.