• 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
* Set Contains: • 8mm, 10mm, 11mm, 12mm, 13mm, 14mm, 16mm, 17mm, 19mm • 1/4”, 5/16’, 3/8”, 7/16”, 1/2”, 9/16”, 5/8”, 11/16”, 3/4”