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Impact Rated(TM) Magnetic Nut Driver - 5/16" x 1 7/8" - Black Steel
This Impact Rated(TM) socket head screwdriver bit by Craftsman(R) is made using black-coloured steel. Featuring a magnetic tip, it allows you to fasten 5/16" nuts and bolts with ease. With a length of 1 7/8", it is robust enough to withstand the high torque output of an impact driver, but can also be used with a regular drill. The recessed corners drive fasteners on the flats. helping to minimize the buildup of metal shavings and reduce rounding of the hexagonal head.