Professionals don’t waste time fighting rounded off, rusted tight or painted-over bolts. They reach for the BOLT-GRIP. A unique, reverse spiral flute design securely grips & removes stubborn nuts & bolts. Works with most tools. 1/2” square drive for use with hand ratchets, impact wrenches & air ratchets; hexagonal flats for use with flat wrench, pliers, adjustable wrench, sockets or locking pliers