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SHOCKWAVE Impact Duty 1/4 Inch and 5/16 Inch x 2-1/4 Inch QU - Milwaukee Electric Tools

Part #: 49-66-4742

The Milwaukee 49-66-4742 SHOCKWAVE Impact Duty Nut Driver is engineered for demanding professional applications, offering versatile 1/4 inch and 5/16 inch hex head fastening capability in a single accessory. Designed for durability and efficiency, this 2-in-1 driver is a practical addition to any technician's toolkit, compatible with both impact drivers and drill drivers.

Key Features

  • 2-in-1 Design: Features both 1/4 inch and 5/16 inch nut driver sizes on one shank, reducing the need for multiple accessories and streamlining work.
  • QUIK-CLEAR Cleaning Mechanism: Designed for fast and easy debris removal, maintaining optimal performance and efficiency during continuous use.
  • IMPACT DUTY Magnetic Retention: The magnetic nut driver securely holds screws during application setup, and the IMPACT DUTY Magnet prevents magnet loosening over time for consistent reliability.
  • Optimized SHOCK ZONE: Engineered to absorb peak torque and prevent breakage, significantly extending the bit's life in heavy-duty impact applications.
  • CUSTOM ALLOY76 Steel: Manufactured from Milwaukee’s proprietary steel, specifically engineered to maximize wear resistance and overall bit durability.
  • Color-Coded for Identification: Clearly color-coded for quick and easy size selection, enhancing workflow efficiency on the job site.

Applications

This Milwaukee SHOCKWAVE Impact Duty nut driver is ideal for professional technicians and mechanics across various sectors, including automotive repair, industrial maintenance, and construction. It excels in fastening hex head screws found in vehicle assemblies, machinery, HVAC installations, and other general fastening tasks requiring robust performance from impact drivers and drill drivers. Its heavy-duty construction is built to withstand high-torque environments.

Specifications

  • Manufacturer: Milwaukee Electric Tools
  • Model Number: 49-66-4742
  • Sizes: 1/4 inch and 5/16 inch
  • Length: 2.43 inches
  • Weight: 1.54 pounds (Bulk 25 pack)
  • Material Composition: CUSTOM ALLOY76 Steel
  • Drive Size: 1/4 inch
We have 16 in stock

$8.78

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This product was added to our catalog on Wednesday 13 May, 2026.

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