Milwaukee Tool 49-66-4743 Magnetic Nut Driver Bit

Product Description

The MILWAUKEE TOOL 49-66-4743 is a magnetic nut driver bit designed for use with power screwdrivers and impact-rated hex chuck tools. Built from alloy steel, this bit features a 1/4 inch hex shank for quick-change compatibility and delivers a secure magnetic hold on fasteners. At 2.5 inches overall length, it gives the clearance needed for most standard driving applications. The magnetic tip retains nuts and hex-head fasteners during positioning, reducing dropped hardware on the job. Compatible specialty point sizes are 5/16 inch and 3/8 inch, making this a versatile addition to any electrician, HVAC tech, or plumber's bit set.

This nut driver bit is suited for residential and light commercial service work where fast, repeatable fastener driving is required. Common applications include panel work, equipment installation, and mechanical assembly tasks where a 1/4 inch hex drive tool is already in use. The 2.5 inch overall length fits standard quick-change bit holders and most cordless screwdrivers and drill-drivers with a 1/4 inch hex chuck. It is sold as a single piece per package.

Key Features

• Magnetic tip retains nuts and fasteners during driving
• 1/4 inch hex shank fits standard quick-change bit holders
• Alloy steel construction for durability under power driving loads
• 2.5 inch overall length provides clearance for recessed fasteners
• Compatible with 5/16 inch and 3/8 inch specialty point sizes
• 0.571 inch body diameter for consistent engagement

Compatibility

Designed as a replacement-style power bit for tools with a 1/4 inch hex quick-change chuck, including cordless screwdrivers, drill-drivers, and impact drivers rated for standard nut driving bits.

Installation Notes

Insert the 1/4 inch hex shank fully into the tool chuck before operation to ensure a secure seat. Confirm the tool is powered off or the battery is removed before changing bits. Do not exceed the torque rating of the tool or the fastener specification. This bit is intended for power tool use; applying excessive side load may shorten bit life.