Bolt Grip fastener removers from Irwin. Designed with a reverse spiral flute which securely grips and removes stubborn nuts and bolts. Suitable for use with a hand ratchet 3/8 in square drive and has hexagon flats for use with a spanner or adjustable wrench.
Maximum gripping power
Reverse spiral flutes are designed to bite
Grips both metric and SAE
Works with most tools