SHOCKWAVE Impact Duty™ 1/2" Drive 3" Extension

SHOCKWAVE Impact Duty™ 1/2" Drive 3" Extension

The Milwaukee 49-66-6706 SHOCKWAVE Impact Duty™ 1/2" Drive 3" Extension is a compact, high-strength extension built for impact work, giving you just the right amount of extra reach without sacrificing durability. Made from forged impact steel, it’s designed to handle serious torque from impact wrenches while keeping your sockets securely in place. With easy attachment features and laser-etched markings, it’s built for efficiency—because the only thing that should slow you down is the job itself, not your tools.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: 49-66-6706
• Brand: Milwaukee
• Drive Size: 1/2" Drive
• Length: 3 inches
• Product Type: Impact extension
• Material: Forged impact steel for high-torque durability
• Compatibility: Optimized for use with 1/2" drive impact wrenches and impact sockets
• Retention: Ball detent design for secure socket hold
• Attachment Design: Dual hole and groove for easier connection and stability
• Markings: Laser-etched part number for quick identification
• Standards: Meets ASME industry standards
• Durability: Built for heavy-duty impact applications
• Warranty: Lifetime Guarantee (covers impact sockets and extensions only)

Ideal For

• Adding reach for hard-to-access fasteners without losing torque power
• Impact wrench users needing a reliable, heavy-duty extension
• Automotive and mechanical work where durability and retention matter
• Anyone who needs just a little extra reach—because sometimes 3 inches makes all the difference