ITEM NAME:Drive Impact Damaged Bolt / Stud Remover Extractor - for Extracting 6 -12mm N7U5 Drive Impact Damaged Bolt / Stud Remover Extractor - for Extracting 6 -12mm N7U5 The Stud extractor is suitable for use with an 3/8 inch square drive Air Impact Wrench. Manufactured with a Chrome Vanadium Body with Chrome Molybdenum Jaws and will remove broken and damaged threaded studs fast. It will work effectively on broken , rusted , stripped and smooth studs sized between 6-12 mm. perfect for removing stripped, rusted, broken or smooth studs. Hex drive can be a driver with a wrench, ratchet, or impact tool. Size:6-12mm Material:steel Colour:Silver + black Package Contents: 1 * stud remover