Milwaukee 49-66-4706 Shockwave Impact Nutdriver 7/16 in

Product Description

The MILWAUKEE 49-66-4706 is a SHOCKWAVE Impact Duty magnetic nut driver engineered for use with power impact drivers in demanding trade applications. Manufactured from proprietary steel and heat-treated to control hardness across the shank and socket, this driver is built to deliver up to 10 times the service life of standard nut drivers under high-torque impact loads. The 7/16 inch drive fits common fastener sizes found in HVAC, electrical, and mechanical installations. A powerful integrated magnet secures fasteners during placement, and the chamfered edge allows seating in confined spaces where clearance is limited.

This nut driver is suited for residential and commercial trade work including HVAC equipment installation, electrical panel and device mounting, and general mechanical fastening. The compact 1-7/8 inch overall length makes it practical for tight-clearance applications such as equipment cabinets, junction boxes, and structural fastening in framed assemblies. Licensed electricians, HVAC technicians, and mechanical contractors will find it a standard addition to impact driver accessory sets.

Key Features

• Proprietary steel construction heat-treated for controlled hardness and extended impact life
• Engineered for up to 10 times the life of standard nut drivers under impact loads
• Powerful integrated magnet for secure fastener retention during driving
• Chamfered socket edge allows engagement in tight and restricted spaces
• Color-coded ring for fast visual size identification in the field
• 7/16 inch drive size covering common trade fastener applications

Compatibility

Designed for use with standard 1/4 inch hex shank power impact drivers. Compatible with 7/16 inch hex head fasteners in HVAC, electrical, and mechanical installation applications.

Installation Notes

This accessory is installed and removed by hand into any 1/4 inch hex chuck impact driver — no tools required for bit changes. Confirm the bit is fully seated in the chuck before operating the driver under load. Inspect the magnetic tip and socket for wear periodically, as impact cycling will degrade engagement over time. Use only with impact-rated drivers; standard drill chucks are not appropriate for this accessory class.

Technical Specifications

• Drive Size: 7/16 inch
• Overall Length: 1-7/8 inches
• Weight: 0.06 pounds
• Package Dimensions: 0.62 x 0.62 x 1.89 inches
• UPC: 0045242213924
• Sold As: Each

Standard Information

• Brand: MILWAUKEE
• Manufacturer Part Number: 49-66-4706