Features 1. Cutting guide tool: can directly read the outer and inner angles from the scale. Split the top corner in half without changing the settings. It is an ideal tool for measuring angles when chamfering large wooden boards, rounded corners, and arched wooden boards. 2. Angle measurement tool: a must-have tool in the toolbox, it is really helpful when you need to cut tricky customized angles, it can save a lot of time, reduce the frustration of measuring corners and cutting quickly. Whether you are using wood, porcelain tiles, ceramic tiles, or any material that requires precise cutting, it can prevent you from reworking and wasting materials. 3. The angle can be easily locked through a metal knob: easy to adjust, with clear and easy to read markings. Simply tighten or loosen the screws, and the angle gauge can accurately measure any desired angle or shape, perfectly locking in any desired angle. At the same time, it can also make marks as needed without the need for laborious paper templates and cutting. 4. High Applicability: This protractor is suitable for cutting tiles, bricks, stone, wood, laminated boards, and any project you can think of. 5. High precision: Our angle ruler can measure angles from 10 degrees to 170 degrees, and can simultaneously measure internal and half angles. Easily obtain the correct angle of the support Specification Material: aluminum alloy Weight: 170 g， 190 g Package Include: 1x Premium Corner Angle Finder