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Proto® Ball Locking Socket Hex Bit, 3/8 in Square Drive, 69.1 mm (L), 4 mm x 41.3 mm

Item: 706740   Model: 577-4990-4M
$11.99 Each

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  • Drive size: 3/8-inch Square
  • Size: 4 mm x 41.3 mm Bit
  • Length: 69.1 mm

Proto® Socket Hex Bit holders have a hex opening to hold the bit, allowing the bit holder to take the full load of torque.

Proto® Ball locking socket hex bit is made of forged alloy steel and has 3/8 sq.in drive. 41.3 mm Bit with 4 mm tip has a hex opening to hold the bit that allows taking full load of torque.

  • Drive size: 3/8-inch Square
  • Size: 4 mm x 41.3 mm Bit
  • Length: 69.1 mm
  • Measuring system: Metric
  • Material: Forged Alloy Steel
  • Metric hex bit has a 4 mm hex bit size
  • Two-piece design allows replacement of worn bits
  • Hex Bit holders have a hex opening to hold the bit, allowing the bit holder to take the full load of torque
  • Replacement shaft no: 1404MRKA

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