Proto® Plain Pin Locking Hex Shank Extension Bit, 7/16 in Male Hex x 1/2 in Male Square Shank Drive

Item #: 707365 | Model #: 577-7121

About this product

Proto® Hex Shank Extension Bit has a one-piece construction that ensures concentricity.

Proto® Plain pin locking hex shank extension bit is made of steel alloy featuring nickel chrome finish and has 7/16" male hex drive. 2 3/4" Extension bit has 1/2" male square drive and offers one-piece construction to ensure concentricity.

  • Length: 2 3/4-inch
  • Material: Alloy Steel
  • Finish: Nickel Chrome
  • Extension bit has an overall length of 2 3/4-inch
  • Pin socket retention
  • One-piece construction ensures concentricity
  • Special heat-treatment ensures long life
  • Precision machined tips for proper fastener engagement
  • Specification: Federal GGG-W-641E, ANSI b107.1
  • Made in USA