Features MEASURING ANGLE: This aluminum protractor goniometer can measure inside, outside and bevel angles, provide great convenience for your wood work FOUR PIECE CONSTRUCTION: Universal bevel protractor come with locking nuts for accurate shape transfer, so that you can use with confidence TRANSFER ANGLE: With this aluminum alloy protractor, you can transfer odd angles to the miter saw, suitable for 0-180 degree angle finder 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 resistant WIDE APPLICATION: Protractor goniometer is used for construction work, cabinet making, and fine woodworking where a standard protractor or T bevel is not suitable Specification: Item Type: Bevel Protractor Material: Aluminum alloy How to Use: Directly use Package List: 1 x Bevel Protractor Package List 1 x Bevel Protractor