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Proto Tools

3/8” Drive 6 Points 21mm Full Polished Standard Length Socket

Proto 3/8" Drive Socket 21 mm - 6 Point
Item #: 11842-J5221MH

Product Info


  • The TorquePlus™ design is a high performance drive configuration which allows for quick and easy socket engagement to the fastener flats, not the corners
  • The TorquePlus™ configuration employs a radius corner design, shifting contact area and stress away from the fastener corners and distributing contact stresses over a large area of the socket, minimizing slippage
  • The TorquePlus™ internal design minimizes fastener rounding, helps to extend fastener life and allows the user to more easily turn worn, rounded or rusted fasteners

Proto® TorquePlus™ Socket, Standard Length, No Impact Rated, System of Measurement: Metric, Square Drive, 3/8 in Drive, 21 mm Socket, 31.2 mm Overall Length, 16 mm Opening Depth, 27.6 mm Drive End Width, 27.6 mm Socket End Width, Ball Locking, 6 Points, 20.2 mm Bolt Clearance Depth, Alloy Steel, Full Polished

⚠ WARNING: Cancer – www.P65Warnings.ca.gov

Item Specifications

  • 3/8
  • Square
  • Full Polished
  • No
  • Standard
  • Ball
  • Alloy Steel
  • 6
  • 16
  • 31.2
  • 21
  • 27.6
  • 0.18 lbs per PC
$11.95 /PC
Regular Price: $11.95
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