1/4" HollowCore™ Magnetic Nut Driver
1/4" HollowCore™ Magnetic Nut Driver
48-22-2521
Milwaukee 48-22-2521 – 1/4" Magnetic HollowCore™ Nut Driver
Product Description
The Milwaukee 48-22-2521 Magnetic HollowCore™ Nut Driver is a professional-grade 1/4-inch SAE nut driver designed for installing and removing hex nuts and bolts, particularly on long threaded rods and extended fasteners. Its HollowCore™ thread-through shaft allows the tool to pass completely over long bolts, providing virtually unlimited fastening depth.
The nut driver features a magnetic universal driver head that securely holds fasteners in place, making installation easier when working overhead or in tight spaces. Built with a durable steel shaft and corrosion-resistant finish, it is engineered for demanding electrical, mechanical, and construction environments.
Key Features
- Size: 1/4 in. SAE nut driver
- HollowCore™ thread-through shaft for long bolts and threaded rods
- Magnetic driver head for secure fastener retention
- Durable steel construction for jobsite reliability
- Ergonomic handle for comfort and improved torque control
- Designed for electrical, HVAC, mechanical, and maintenance work
Typical Applications
- Electrical panel and conduit installation
- HVAC equipment assembly
- Mechanical maintenance and repair
- Installing nuts on threaded rod systems
Tool Type: Magnetic hollow-shaft nut driver
Size: 1/4 in.
Measurement System: SAE
✅ Short catalog description:
Milwaukee 48-22-2521 – 1/4" Magnetic HollowCore™ Nut Driver with thread-through shaft and magnetic tip for installing hex nuts on long threaded fasteners.

$10.95