The STANLEY® FatMax® Pro Torpedo Level has a a die-cast aluminum body for long lasting durability. The solid block vial provides accuracy of 0.5mm/m (0.0005in/in), and a 180-degree rotating vial is designed to duplicate angles. It includes a magnified center vial for improved visibility. Its magnetic base features a pipe groove for use on rounded surfaces. Ideal for scaffolders, plus it is also perfect for installing machinery, air conditioning ducting or shelving.