The Performance Tool thread repair tool is a must-have for any DIY enthusiast or professional mechanic. With the ability to quickly repair damaged threads on wheel studs, bolts, and threaded rods, this tool saves you time and money on replacement parts. The three durable tungsten carbide cutting blades have a hardness rating between 88-90 HRC, making them suitable for most metals and leaving a clean thread end. The tool is easy to use and can be operated using the lowest drill gear with consistent forward pressure. Its wide bit capacity of 1/8-3/4" (3-19mm) allows it to be used with most materials, including stainless steel, aluminum, plastic, or wood. Note that using the tool above the recommended RPM or with hammer/impact drills will destroy its cutting edge.