7-piece power bolt grip set

Grips both metric and SAE - Universal Lobular Design fits both sizes

Black oxide finish with white markings - prevents rust and easy-to-read markings

Maximum gripping power - reverse spiral flutes are designed to bite down

Removes rounded off, painted over, damaged, and rusted over nuts and bolts

Shear-resistant shank - high-carbon steel shank is larger than most fastener shanks and resists torsional shear

1/4" hex shank for use with cordless drills, impact drivers, corded drills, and nut runners

Power groove allows for use with quick change adapters

Includes sizes: 3/16", 1/4", 5/16", 3/8", 10mm, 7/16", 1/2", and plastic case