Feature: 1. Stud Remover Description: 3/8in/0.95cm drive damaged bolt extractor fits most drive tools and can be used with hand or pneumatic impact wrenches (not include) and ratchets as well as adjustable wrenches and flat wrenches (not include). 2. Multi Purpose: This stud removal tool is very practical, whether it is exhaust manifold, fuel plug, broken bolts, or damaged, painted, rusted fastening screws can be effectively removed, but due to the excessive clamping force, minor wear may occur on the threaded surfaces. 3. Specially Designed: This is a well designed auto adjusting stud extractor that easily clamps damaged studs for stripping, saving you valuable time and it is really useful tool for your toolbox. 4. Easy to Operate: Place the stud extractor on the stud and turn the bottom hex flat nut counterclockwise to tighten the jaws. With the jaws firmly gripping the broken bolt or stud, continue to turn the stud counterclockwise until it is removed. Then loosen and separate in a clockwise direction. 5. Premium Material: Adopting durable heat treated alloy steel, with a chrome plated finish, stud removal tool won't be damaged by high intensity work, and adds lubricant to the internal rotating threads for better rust and wear protection. Specification: Item Type: Stud Extractor Material: Steel AlloyDrive: Approx. 3/8in/0.95cm Scope of Application: 1/4in-1/2in (6mm-12mm) Material: Heat treated alloy steel with chrome plating (CrMo) Applicable: Universal design for most drive tools Robustness: HRC40-45Characteristic:Powerful Practicality This stud extractor will help you the most. The adjustable function makes it very lightweight and very popular, suitable for a wide range of wrenches from 1/4in-1/2in (6mm-12mm). Rugged alloy steel prevents damage and the three internal large claws are powerful enough to effectively remove damaged bolts for exhaust manifolds, filler plugs and other areas where they are needed. Upgrade tool The fast paced life drives people to pursue higher work efficiency, and the upgrade of tools is also synchronized. Our products are upgraded with a variety of sizes of extractors and heat treated alloy steel and chrome plating to increase hardness and rust resistance, so this upgraded adjustable extractor will definitely eliminate your troubles and help you get more happiness The same size as the palm You can grab it with one hand, it's small and doesn't take up too much space, which allows you to place more space yourself, anyone can use it, and the freely adjustable extractor is in range any size inside. The adjustable bolt extractor saves valuable time and space. The small body, full of strength, is very helpful to you and is definitely a good complement to your toolbox. Package List: 1 x Stud Extractor