The 8-foot Heavy Duty Aluminum Straight Edge is an ideal ruler for the industrial setting. You can use the straight edge to draw straight lines and to make parallel lines. We may not have all the answers, but we'll do our best to get you an answer.
Ideal for checking straightness and plumb of large surfaces quickly. Even though I have a laser level tool, I have found this straightedge much more handy and quicker to use when checking straightness of wall studs and adfing shims prior to drywall installation. When used for longer measurements over space, it holds its shape and rigidity better than a tape measure. Although a bit awkward to transport because of it's size, once at the jobsite, or for permanent shop storage, it's invaluable.
This 8 ft straight edge makes drawing a straight line on a 4X8 sheet of wood, etc a much easier task. When I do it 4 ft at a time, they never seem to come out straight.