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Proto® Socket Hex Bit has a two-piece design that allows replacement of worn bits. Bit holders have a hex opening to hold the bit, allowing the bit holder to take the full load of torque.
Proto® Ball locking extra long socket hex bit is made of forged alloy steel and has 1/2 sq.in drive. 4 1/8" Bit with 5/16" tip has a hex opening to hold the bit that allows taking full load of torque.
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