- Large 12mm tubular center vial for accuracy of 0.0005-in
- Large 12mm tubular plumb vials for accuracy of 0.001-in
- Continuous edge scribe and score lines
- Heavy-duty body design, wide base, and thick extrusions
- Shock absorbing end caps hold up to heavy use
- Top read window for easy reading from above
![Stanley Products Magnetic I-Beam Level, 24" #STHT42411 (3/Pkg.) Stanley Products Magnetic I-Beam Level, 24" #STHT42411 (3/Pkg.)](https://cdn11.bigcommerce.com/s-gdy1ehz/images/stencil/500x659/products/311467/446641/STHT42409__43560.1668114339.jpg?c=2)