Comprehensive 13piece screw extractor set 13 essential sizes from 1/8 in to 1/2 in, providing a complete solution for tackling rusted or stripped bolts and screws. Quick and effective removal with a spiral groove design that embeds quickly into damaged fasteners, delivering strong grip and reliable threading with power tools. Multi purpose applications for automotive repairs, home improvement tasks, and construction work; suitable for both seasoned professionals and DIYers. User friendly markings with each piece labeled by size for fast identification, reducing search time and ensuring the right extractor is used for any job. Use scenarios Automotive repairs: removes seized or rusted bolts in engines, exhausts, and other components. Home improvement: frees stripped screws in cabinetry, furniture, or decking, enabling fast and clean repairs. Construction and maintenance: extracts damaged fasteners from metal frames, equipment, and machinery to restore function efficiently.