Wheel nut removal kit - the locking wheel nut has a deep reversed internal thread, which adheres to the outside of a wheel nut, allowing it to be removed. The set can also be used to remove corroded or damaged bolts. High Quality - Bolt nut extractor processed from high hardness chrome molybdenum steel, the inverted spiral flutes are designed to be bitten off to provide maximum gripping power. The extraction tool kit includes sizes of 17mm, 19mm, 21mm and 22mm. Comes with a useful carrying case for quick and easy storage. Multi-purpose - the twist socket set is suitable for removing rust and wear, as well as covering the paint coating of nuts, bolts. The bolt extractor provides maximum gripping power to easily remove broken, damaged or rusted nuts, bolts and screws.