The MILWAUKEE® 4-Piece SHOCKWAVE Impact Duty™ 1/2" Drive Extension Set provides better access in hard to reach places and offers extreme impact durability in high torque applications. The laser-etched size markings allow for fast identification of drive size and length. The dual-hole design and ring groove allow for easy attachment and removal of the extensions. All SHOCKWAVE Impact Duty™ Socket Extensions are backed by a Lifetime Guarantee and meet ASME industry standards.

Milwaukee® SHOCKWAVE™ Impact Duty™ Extension Set, Dual Hole, Impact Rated: Yes, 4 Piece, 1/2 in Drive, For Use With: 1/2 in Drive Impact Wrenches and Impact Sockets, 3, 6 and 10 in Extensions, Steel

• Made with forged impact steel for durability in high torque applications backed by our lifetime guarantee
• Laser etched markings for easy identification
• Lifetime guarantee covers impact sockets and extensions only
• Dual hole design for easier attachment
• Ball detent design for superior impact socket retention
• Laser etched part number