Product Description

WORKPRO 3-Piece Impact Extension Bar Set

WORKPRO Extension Bar Set, which is made from premium chrome molybdenum steel by heat treatment for high hardness and good toughness. The surface is coated with Manganese Phosphate to prevent rust and corrosion for durability. Available in the three most commonly used lengths, 3", 6" and 8".

  1. Premium CR-MO Steel


    Forged from heat-treated chrome-molybdenum steel for outstanding strength and high hardness.

  2. Ensure Secure Locking


    1/2 inch square interface, with a pin hole to ensure that the extension bar is firmly locked into the drive.

  3. Spring-Loaded Steel Ball


    Spring-loaded steel ball, more convenient to use and with stronger locking.