The Sealey 4 Piece 1/2 Drive Stud Extractor Set is a professional-grade socket tool designed for removing damaged or broken studs during engine overhaul and repair work. This essential workshop tool provides mechanics and automotive technicians with a reliable solution for dealing with studs that have sheared off or where the head has been damaged beyond conventional removal methods. Manufactured from Chrome Molybdenum steel, each extractor is heat treated to deliver exceptional strength and durability under high torque applications. The chrome plated finish provides long-lasting corrosion resistance, ensuring the tools remain in serviceable condition even in demanding workshop environments. The socket-type design allows each extractor to be operated with either a 1/2"Sq drive ratchet or breaker bar for maximum versatility and leverage. The set includes four metric sizes covering common stud dimensions (6mm, 8mm, 10mm, and 12mm), making it suitable for a wide range of automotive and me