Reverse spiral flutes are designed to bite down to provide maximum gripping power.High carbon steel ensures longer life and greater durability.Universal lobular design fits all types of fasteners.3/8" square drive for use with hand ratchets, impact wrenches, and air ratchets.Hexagonal flats for use with flat wrench, pliers, adjustable wrench, sockets or VISE-GRIP locking pliers.Includes 3/8", 7/16"(11mm), 1/2", 9/16"(14mm), 5/8"(16mm)
Irwin 394001 5-Pc BOLT-GRIP Bolt Extractor Set