"High Quality: Locking wheel nut removal set with high power and impact resistance. Bolt nut extractor processed from high hardness chrome molybdenum steel, the reverse spiral flutes are designed to bite to provide maximum gripping power.3/8 inch square drive: puller sets have hex flats for use with open end wrench, pliers, adjustable wrench, sockets or vise lock pliers, square drive of 3/8"""" for use with hand ratchets, impact wrenches and air ratchets.Design: The design of the spiral socket allows a secure connection on the rounded attachment to be extracted. This bolt nut extension kit has a black oxide surface providing greater strength and durability and prevents the corrosion.Multifunctional: The twist socket set is suitable for removing rust and wear, as well as covering the paint coating of nuts, bolts. Bolt remover provides maximum gripping power to remove easily cracked, damaged or rusted nuts, bolts and screws.Package Included: Bolt Removal Tool Set Includes Metric Measurements and Sizes - 8mm, 3/8""", 10mm, 11mm, 12mm, 13 mm, 14mm, 16mm, 17mm, 11/16"""", 3/4"""" 19mm). Comes with a useful carrying case for storage quick and easy."""