The FATMAX 24 in. magnetic level has an accuracy of 0.0005inches/inches. The MaxEdge cover the vial for a smooth consistent level surface. A single piece of aluminum is used in this levels construction.
Stanley FATMAX 24 in. Non-Magnetic Aluminum Box Level 43-524 - The Home Depot
Stanley Magnetic Level Bar Pro Fatmax I-Beam Level 24 / 48 in - 43-554 / 43-556 / Torpedo Level PVC Magnetic Level - 42-291 / 42-264
DEWALT 24 in. Magnetic Heavy Duty Box Beam Level DWHT43025 - The Home Depot
STANLEY® FATMAX® Box Level 600mm
Stabila 196-2-100 Level 3 Vial 100cm/40in 15235-STB1962100
Stanley FATMAX 24 in. Non-Magnetic Aluminum Box Level 43-524 - The Home Depot
STANLEY® FATMAX® Magnetic Box Level 1200mm
Stanley 24 in. Non-Magnetic High Impact ABS Level 42-468 - The Home Depot
STANLEY® FATMAX® Magnetic Box Level 600mm
Stanley FATMAX 72 in. Non-Magnetic Aluminum Box Level 43-572 - The Home Depot
STANLEY Level, Non-Magnetic, 24-Inch (43-524) : Tools & Home Improvement
RYOBI - Levels - Measuring Tools - The Home Depot