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Stanley 43-549 FATMAX Magnetic Box Level (48-inch)
The Stanley 43-549 is a heavy-duty, 48-inch (1200 mm) magnetic box level engineered for precision alignment in industrial, construction, and structural environments. Built around a durable, single-piece aluminum box-beam, this level integrates powerful rare earth magnets to ensure a highly secure, hands-free hold on ferrous surfaces.
Designed for maximum field reliability, the 43-549 features a MaxEdge bridged center vial that enables a continuous marking surface. Its block vials are rigorously calibrated to deliver a professional accuracy of 0.0005 in/in (0.5 mm/m). The tool also incorporates large, ergonomic rubber over-molded hand grips for carrying ease, while shock-absorbing end caps and side bumpers protect the frame and safeguard finished surfaces from incidental damage.
Key Features
- Heavy-Duty Construction: Single-piece aluminum box-beam design ensures long-lasting structural integrity and durability.
- Magnetic Hold: Integrated rare earth magnets provide an exceptionally strong and secure grip on metal surfaces.
- Precision Accuracy: Block vials offer a maximum accuracy of 0.0005 in/in (0.5 mm/m).
- MaxEdge Center Vial: Bridged design allows for a continuous, uninterrupted marking surface for seamless layout work.
- Drop Protection: Shock-absorbing end caps and non-marring side bumpers protect the precision vials and prevent damage to finished walls or materials.
- Ergonomic Handling: Built-in rubber over-molded grips support comfortable carrying and stable positioning.
Technical Specifications
| Manufacturer | Stanley |
|---|---|
| Model Number | 43-549 |
| Length | 48 in (1200 mm) |
| Accuracy | 0.0005 in/in (0.5 mm/m) |
| Material | Aluminum |
| Magnetic Base | Yes (Rare Earth Magnets) |
Frequently Asked Questions
Q: Does this level have a magnetic base for hands-free use?
A: Yes, the Stanley 43-549 is equipped with strong rare earth magnets, allowing for secure attachment to pipes, beams, and other metallic surfaces.
Q: What is the rated accuracy of the vials on this box level?
A: The block vials provide a maximum reading accuracy of 0.0005 in/in (0.5 mm/m).
Q: What is the benefit of the MaxEdge bridged center vial?
A: The bridged layout provides a smooth, continuous marking surface over the top of the vial, enabling you to scribe a straight, uninterrupted line across the entire edge of the level.

