Stanley 0-43-648 FatMax Xtreme Box Beam Level The Stanley 0-43-648 is a rock-solid box beam where the construction is up to 5 times stronger than other Stanley levels. It has solid acrylic block vials to provide the best in class accuracy in 8 orientations of +/-0.5mm/m which are magnified by 20% for improved all-round visibility. The rare earth magnets, which are twice as strong as basic strip magnets, are built into the level for stability. Features: Dual machined levelling surfaces for maximum accuracy Bi-material hand grips are screwed into the frame Rock-solid box beam construction is up to 5 times stronger than other Stanley levels Solid acrylic block vials provide best in class accuracy in 8 orientations of +/-0.5mm/m Durable powder-coated frame Low profile vial covers for easy cleaning Rare earth magnets, which are twice as strong as basic strip magnets, are built into the level for stability Rubber over-moulded protective end caps Vials magnified by 20% for improved all-round visibility Specification: Length in inches: 48 Length in cm: 120 Accuracy in mm/m: 0.5 No. of vials: 3