Upgraded doublehead design that connects directly to a wrench, eliminating the need for connecting sleeves and enabling effortless removal of damaged bolts. Enhanced grip and performance with a spiral lefthand structure, delivering bite and faster threading speeds for reliable operation under pressure. 15piece screw extractor set with sizes ranging from 18 to 12, all clearly engraved on the sockets for quick identification and tool selection. Function and compatibility Hex head multi bolt extractor construction designed for extracting damaged bolts and fasteners. No adapters or sleeves required; direct wrench connection simplifies setup and use. Built to provide consistent grip and turning performance, helping to remove stubborn bolts in challenging conditions. Use scenarios Automotive : remove seized or snapped bolts in engines, transmissions, and suspension components. Machinery maintenance: extract rusted or broken bolts from motors, gearboxes, and equipment frames. DIY and home projects: deal with stripped bolts in furniture, decks, metal frames, and other common projects. Specification highlights Set: 15 pieces Size range: 18 to 12 Engraved sockets for easy size identification and quick tool selection Direct wrench connection design to simplify workflow and reduce setup time