[EFFORTLESSLY REMOVE ANY STUD]: The ABN Universal Stud Bolt Extraction Remover, 3/8” Inch Drive – 1/2" (6mm to 13mm) Studs Metric & SAE Removal Tool will effectively work on threaded, broken, rusted, stripped, and smooth studs for ultimate versatility [FITS YOUR APPLICATION]: Adjustable to fit studs that are 1/2-inch drive (6mm to 13mm) [USE YOUR TOOLS:] Fits 1/2"-inch impact wrench or ratcheting wrench; Impact wrench can be inserted directly into the stud extractor [BUILT TO LAST]: Jaws are perfectly shaped to easily grab a bolt or stud even with no head; Solid metal construction for strength and longevity [EASY TO USE:] No heating required Place stud extractor over stud to be removed and tighten jaws by turning rear hex drive nut in a counter-clockwise motion; Engage air impact wrench into the hex drive, Weight: 0.87303055752 pounds, Manufacturer: Dapetz