1. TOOL DESCRIPTION - The stud extraction tool uses a 3/8-inch drive for 1/4-inch to 1/2-inch studs (6 mm to 12 mm). - This extractor is a modified metal chuck that holds the stud well instead of a drill bit. - It is best used with impact wrenches and ratchets. - It can also be used with flat wrenches, adjustable wrenches, sockets, and locking pliers. 2. STRONG AND DURABLE - Made of heat-treated alloy steel with high strength, high abrasion resistance, and good corrosion resistance. - Chrome plated to withstand high intensity work. - Three large internal claws provide powerful grip to remove damaged bolts from exhaust manifolds, filler plugs, and other places where they are needed. 3. TRADITIONAL UPGRADE - Universal design with automatic size adjustment, offering better versatility than traditional broken stud removers that are limited in size and variety. - Clamps down on damaged bolts for stripping, reducing hassle and saving time. 4. EASY TO USE - Place the stud extractor on the stud. - Turn the bottom hexagonal flat nut counterclockwise and tighten the jaws. - Once the jaws firmly clamp the broken bolt or stud, continue to rotate the stud counterclockwise until removed. - Loosen and separate in a clockwise direction. 5. USE SCENARIOS - Automotive repair: easily remove broken studs from exhaust manifolds and other engine components. - Engine maintenance: extract damaged studs or bolts from engine blocks or filler plugs in tight spaces. - Machinery and equipment maintenance: remove seized studs from castings or other housings in industrial or heavy equipment.