7Pcs 1/2" Drive Twist Socket Set Lug Nut Remover Extractor Tool 17-26Mm Metric

100% Brand New,never been used 7pc Nut Bolt Extractor Socket And Tommy bar Set The specially hardened sockets with corrosion protection are designed for the removal of damaged bolts, screws and nuts. The Twist socket design allows for a secure connection onto the rounded-off fastener to be extracted. The innovative spiral profile digs itself into the head of a damaged screw or nut, allowing it to be easily loosened. 1/2" square drive for use with socket wrench or impact wrench. These broken bolt extractors have Black oxide surface provides greater strength and durability and prevents corrosion. No Instruction Included Specifications: Material: Chromium Vanadium Steel ( has more good wear resistance and toughness than Chromium-molybdenum steel , the former is commonly used in Socket , the latter used for Screwdriver) Size: Driver size: 1/2" Straight bar diameter: 12mm/0.47" The set includes SAE sizes - 11/16", 3/4" , 5/6" , 7/8", 1" Metric sizes � 17mm, 19mm, 21mm, 22mm 26mm. Package including: 17mm, 19mm, 21mm, 22mm ,26mm twist sockets, 12mm straight rod 1x Case Just as picture show