Stanley J7121 Proto 1/2-inch Square Extension 7/16-inch Hex Made of forged steel. Size stamped on tool for easy identification. Ball detent. Not for use on impact applications.

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Stanley J7121 Proto 1/2-inch Square Extension 7/16-inch Hex Made of forged steel. Size stamped on tool for easy identification. Ball detent. Not for use on impact applications.

  • Made of forged steel
  • Size stamped on tool for easy identification
  • Ball detent
  • Not for use on impact applications
  • Made in USA

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