Description Made of high quality aluminium alloy, this protractor is superior and stronger than traditional plastic ruler angle divider; it is resistant to scratch and very durable. Using laser engraving technology, the angle degree is directly engraved onto the aluminum alloy ruler, which will not be worn out easily.Its adjustable screw cap allows us to choose a fixed angle, plus a slidable design will help to convert or remove the angles easily. This tool precisely measures angles, then locks the angle, and also divides the angle perfectly.This multi-angle ruler could create special angles or shapes for flooring, brick, tiles, stones and so on woodworking measurement. The miter angle we wanted to measure will be determined easily and correctly.This measurement tool is specifically designed to ensure a perfect and precise miter angle as we could measure it from included angles or half angles.With the adjustable and foldable design, not only is this ruler easy to use, but also convenient to carry or store.JCSW hopes you to be satisfied with every purchase.Products from WUZHOU 39;s store,