This DEWALT DWHT42163 I-Beam Level is a reliable tool for all your levelling needs. It has a shock resistant design, and it also features a magnified center vial. This yellow i-beam level is designed to meet the accuracy standards of +/- 0.0005 in.. The frame is made of aluminum, which makes it lightweight yet durable. The rare earth magnet on this 24 in. level provides additional stability and control when working with metal materials such as sheet metal or conduit piping. The level also has 4 magnets and 2 plumb vials so you can get the most accurate measurements possible. If you want an i-beam level that will provide accurate results every time, then look no further than this DEWALT DWHT42163 I-Beam Level.