The Irwin Hanson Screw Extractor set includes 10 pieces featuring a Multispine Hex design for extracting screws ranging from 1/8" to 13/32" in size. This manual drive set is manufactured in the United States and is a new old stock (NOS) item, making it a reliable addition to any toolbox for removing stubborn or damaged screws. The Irwin Hanson brand is known for producing high-quality hand tools, ensuring durability and effectiveness in the extraction process.