16-Piece Alloy Steel Nut Extractor Set. Why Choose the Alloy Steel Nut Extractor Set?. Manufacturer Part Number: Bolt Extractor Set Number of Pieces: 16 Unit Quantity: 1.0 Type: Nut Extractor Set. Equipped with advanced Bolt Biter™ technology, these nut drivers are more than just regular tools; they are a revolutionary solution designed to provide ease and efficiency, making every removal a breeze.