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The MILWAUKEE TOOL 48-32-4773 is a Number 3 square drive screwdriver bit built for use with standard 1/4 inch hex shank power tools and hand drivers. Constructed from steel, this single-end bit measures 2 inches in overall length and is designed to deliver consistent torque transfer on Square Number 3 fasteners. The straight, single-end design keeps the profile simple and compatible with most bit holders and quick-change chucks. It is a direct-fit replacement bit suited for electricians, HVAC technicians, plumbers, and general tradespeople who work regularly with square-drive fasteners on panels, enclosures, and equipment covers.
This bit is commonly used in residential and light commercial applications where Square Number 3 fasteners appear on electrical panels, junction boxes, HVAC equipment access covers, and similar assemblies. The 2-inch length provides enough reach for recessed fasteners while remaining manageable in tight spaces. It is sold as a single unit and is appropriate wherever a 1/4 inch hex drive bit is the standard tool interface.
Designed as a direct-fit replacement for use with any 1/4 inch hex drive bit holder, impact driver, or hand screwdriver accepting standard single-end square drive bits.
Installation of this bit requires no special tools beyond the driver or bit holder it is seated into. Ensure the bit is fully seated in the quick-change chuck or bit holder before applying torque to prevent cam-out or bit damage. When working near energized electrical components, follow NFPA 70E safe work practices and de-energize equipment before fastening or removing hardware. Inspect the bit tip for wear before each use and replace if the drive faces show rounding.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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