This 4piece metric stud extractor set is designed for broken stud removal. The kit includes four tools that function as stud extractors, sockets, drive nut removers, and stud pullers. It is intended for metric fasteners and suitable for automotive, industrial, and household applications. Key benefits Quickly remove broken studs without damaging surrounding threads. Multifunction design allows use as stud extractor, socket, drive nut remover, and stud puller. Fourpiece metric set covers a range of sizes for common fasteners. Compatible with standard workshop drives and sockets, enabling easy integration into existing toolkits. Compact, portable design for onsite or use. Key attributes Functionality: provides stud extraction, nut driving, and stud pulling capabilities in a single set. Compatibility: metric sizing designed for use with metric studs and common workshop drive tools. Size: includes four pieces to address a variety of fastener sizes. Material: material and construction details are not disclosed in the product listing. Performance: engineered to facilitate reliable removal of stubborn studs and drive nuts with control and efficiency. Use cases Automotive : remove broken studs from engine blocks, cylinder heads, and exhaust manifolds without damaging surrounding threads. Machinery maintenance: extract broken studs from pulleys, hubs, and gear assemblies during equipment servicing. DIY and home projects: handle broken studs in bikes, lawn equipment, and household appliances with a practical, multifunction tool set.