Feature:1. MEASURING ANGLE: This aluminum protractor goniometer can measure inside, outside and bevel angles, provide great convenience for your wood work2. FOUR PIECE CONSTRUCTION: Universal bevel protractor come with locking nuts for accurate shape transfer, so that you can use with confidence3. TRANSFER ANGLE: With this aluminum alloy protractor, you can transfer odd angles to the miter saw, suitable for 0-180 degree angle finder4. MEASURABLE ANGLE: The angle finder protractor comes with a fine black gradient, from 0 to 180, in the opposite direction. Aluminum material possess good strength and good erosion resistant5. WIDE APPLICATION: Protractor goniometer is used for construction work, cabinet making, and fine woodworking where a standard protractor or T bevel is not suitableSpecification:Item Type: Bevel ProtractorMaterial: Aluminum alloy.Package List:1 x Bevel Protractor