Milwaukee Elec Tool 49-66-4536 Magnetic Nut Driver

Product Description

The MILWAUKEE ELEC TOOL 49-66-4536 is a 7/16 inch by 2-9/16 inch impact-duty magnetic nut driver built for demanding fastening applications. It is constructed from heat-treated CUSTOM ALLOY76 steel, which delivers controlled hardness and extended service life compared to standard bit steel. The integrated SHOCK ZONE geometry is engineered to absorb peak torque at the point of impact, reducing the risk of bit breakage during high-cycle work. A chamfered tip edge improves engagement with screw heads in confined spaces. Color-coded size bands allow fast visual identification in a crowded tool bag or bit set. This driver is suited for installation by electricians, HVAC technicians, plumbers, and other trades who regularly drive hex-head fasteners.

The 49-66-4536 is designed for use with both impact drivers and drill drivers, making it a versatile addition to any trade kit. The 7/16 inch drive size is a common fit for sheet-metal screws, electrical box knockouts, and HVAC panel fasteners. The 2-9/16 inch overall length provides reach in standard access conditions while remaining compact enough for use in tighter installations. It is sold as a 3-piece package, providing backup drivers for high-volume work or job-site redundancy.

Key Features

• Heat-treated CUSTOM ALLOY76 steel construction for controlled hardness and extended bit life
• SHOCK ZONE technology absorbs peak torque to reduce bit breakage under impact loads
• High-strength magnet provides secure fastener retention during placement and driving
• Chamfered tip edge improves screw-head engagement in confined spaces
• Color-coded bands allow fast size identification without reading labels
• Compatible with both impact drivers and standard drill drivers

Compatibility

Designed for use with 1/4 inch hex-shank impact drivers and drill drivers. Compatible with both corded and cordless platforms accepting standard 1/4 inch hex tool accessories.

Installation Notes

Install and remove by electricians, HVAC technicians, or other tradespeople using standard 1/4 inch hex-shank power tools. Ensure the tool driver is powered off or the battery disconnected before changing accessories. Verify fastener size matches the 7/16 inch drive before applying torque to avoid cam-out or fastener damage. Inspect the magnet and tip for wear periodically on high-cycle applications.