High Quality: Locking wheel nut remover set with high power and impact resistance. Bolt nut extractor processed from high hardness chrome molybdenum steel, reverse spiral splines are designed to bite to provide maximum gripping power. 3/8 square drive inch: Puller sets have hex flats for use with open end wrench, pliers, adjustable wrench, sockets or vice lock pliers, 3/8" square drive for use with hand ratchets, impact wrenches and air ratchets. Design: Spiral socket design allows secure connection on the rounded fastener to be pulled out. This bolt nut extension kit has a black oxide surface providing greater strength and durability and prevents corrosion. Multifunctional: The twist socket set is suitable for removing rust and wear, as well as to cover the paint coating of nuts, bolts. The bolt remover provides maximum gripping power to easily remove broken, damaged or rusted nuts, bolts and screws. Package Contents: The Bolt Removal Tool Set includes metric measurements and sizes - 8mm, 3/8", 10mm, 11mm, 12mm, 13mm, 14mm, 16mm, 17mm, 11/16", 3/4" 19mm). Comes with a useful carrying case for quick and easy storage. Product Description: The bolt extractor can be used with a ratchet wrench, socket drive, hand ratchets, impact wrenches and air ratchets. These screw extractors Helps remove rounded, damaged or rusted hex screws. Why choose us: Specially hardened sockets with corrosion protection are designed to remove damaged bolts, screws and nuts. The spiral socket design allows a secure connection on the rounded closure to extract. The innovative spiral profile digs into the head of a damaged screw or nut, allowing it to be easily loosened. The spiral cut teeth provide a positive grip for removing rounded or damaged bolts. These tools can be driven with a metric wrench or socket for quick work. All these tools are packaged in a case for easy storage and transport. Features: Material: high hardness chrome molybdenum steel. Dimensions: 8mm, 10mm, 11mm, 12mm, 13mm, 14mm, 16mm, 17mm, 17mm, 11mm, 19mm. < /p> Package Contents: 13pcs Impact Bolts and Nuts Set. Color: Blue + Black