2-in-1 Design-- A 2-in-1 miter measuring cutting tool can not only measure the miter angle, but also complete cutting, you don't need to use multiple tools and automatically transfer the mitre angle without errors to the saw. Precise Measurement-- The miter measuring cutting tool has 2 moving arms, which can measure angles from 85 to 180 and can be used directly to measure all angles within this range. Accurate Sawing-- The miter saw protractor uses an integrated saw guide pins to place the baseboard on the provided rails and saw with a back saw for precise and error-free bevel cuts. Wide Application-- This miter saw protractor angle finder is used to solve the problem of cutting corners in skirtings or recesses that require special measuring tools, suitable for woodworking, pipeline installation, home improvement, etc. Easy to Use-- Find the angle that needs to be measured, lock and then cutting. This 2-in-1 miter measuring cutting tool is suitable for baseboard up to 30 mm wide.