With the STEELMAN PRO 79989 3-Piece 1/2-Inch Drive, 3/8-Inch Pinless Swivel Impact Extension Set, you’ll be able to access hard-to-reach spaces where maximum power is needed. The set includes three swivel-tip extensions; one each at 6-inch, 9-inch, and 12-inch length. Made from premium quality, heat-treated 4140 chromoly steel with black oxide finish these extensions are designed to hold up to long use. Compared to a universal joint design, the pinless joint design found on these adapters transfers more useable torque to fasteners while adding safety by preventing projectiles common to other designs in the event of accidental breakage. The swiveling heads on these adapters provide a high degree of flexibility, allowing for a wider range of applications.


  • EXTEND YOUR REACH - Extending the length of the drive shaft allows access to tight spaces
  • 3 PIECE SET - This 3 piece set includes a 6-inch, 9-inch, and 12-inch extension
  • PREMIUM QUALITY - Made from premium quality, heat-treated 4140 chromoly steel with black oxide finish
  • 1/2-INCH FEMALE DRIVE END - 1/2-inch female drive end accepts the most popular size of power tool used for driving
  • 3/8-INCH MALE END - 3/8-inch male end accepts all types of 3/8-inch impact grade sockets
  • MAXIMUM TORQUE TRANSFER - Pinless joint design transfers maximum torque from driver to socket
  • WIDE RANGE OF MOTION - With a wide range of motion more angles are available to work from making it easier to reach fasteners
  • INCREASED SAFETY - Pinless design prevents projectiles common to pinned designs in the event of breakage


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manufacture warranty
Lifetime Limited Warranty
Lifetime Limited Warranty

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