30° 60° 90° Semicircle Protractor Plastic Disc Protractor Angle Ruler Equipped with a Screw Cap to Fix the Angle

Description Aluminum alloy material wear resistant and durable surface black oxidation treatment Equipped with a fixed nut the nut can be tightened to fix the angle easy to use There are two scales printed on the ruler to meet different needs Equipped with 30° 60° 90° and other angles it is more convenient to measure the angle The back slide rail is concave design and the slider is flat and aligned with the back Type Universal Angle RulerMeasurement accuracy 0 5mmScope of application woodworking decorationMaterial aluminum alloyPackage included 1 x Semicircle ProtractorDetails picture