• Dual-purpose extension nut drivers fit 1/4, 3/8, and 1/2 in. square drive sockets • The 2 larger drivers have 1/4 and 5/16 in. magnetic hex nut drivers built-into the ends • Retaining ring collar ensures sockets are securely attached • Transforms your power drill into a power nut/socket driver • Impact grade chrome vanadium steel with rust resistant black phosphate finish • Each adapter extension is 2-1/2 in. (65 mm) in length
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