This damaged bolt and stud extractor tool features a 3/8-inch drive and is compatible with manual or pneumatic impact wrenches and ratchets for quick and easy removal of damaged bolts and studs. It fits 1/4 - 1/2-inch (6 - 12 mm) studs. The 3/8-inch damaged bolt extractor is made of heat-treated metal for high strength and durability. It is chrome-plated to resist damage from heavy-duty use and to help reduce rust and wear on internal rotating threads. Unlike traditional bolt extractors that are limited in size and variety, this tool features a universal design with automatic size adjustment, allowing it to securely grip damaged bolts for efficient removal, saving time and effort. This stud removal tool is versatile and effective for various applications, including exhaust manifolds, fuel plugs, broken bolts, and rusted or painted set screws. To use, simply place the extractor over the stud and tighten the jaws by turning the bottom hexagonal nut counterclockwise. Once the jaws are securely clamped onto the damaged bolt or stud, continue turning counterclockwise to remove it. Color: As shown Material: Metal Package Contents: 3 pcs x Stud Extractor Tool Note: Light reflection and different displays may cause slight variations in the color of the item in the picture compared to the actual product. Measurement may vary by +/- 1-3 cm.