Do you know the material of this Thread Repair Kit 25pc box set ？#threadrepair #autorepair

The surface of this thread repair tool is smooth and textured, and the slot is stable, so it is not easy to drop. Using high-hardness material, it can be easily rotated out. This set of tools uses a curved handle, which is safer and more convenient to touch without fingers. More information:www.chinaviktec.com.