Built with the tradesman in mind, the OX Tools Pro Tuff Levels are designed to take a beating. The aluminum body of the level is one solid piece, designed to have the least amount of holes, handles, or gaps to prevent cement, mud, and other debris from getting clogged. The level includes three vials, one for level, two for plumb. The vials consistently provide an accuracy of 0.0005"/ 1" or . 5mm/ m and are protected by structural reinforcement. On each end of the body there are rubber end caps to protect the level from bumps, drops, and excess damage. The top and bottom of the level are both milled surfaces giving it a perfectly flat edge and ensuring increased accuracy compared to a coated surface.