1Step to Solve: You can measure the miter angle and complete the cut without using multiple tools and avoid errors when transferring another tools. 2Multiangle Measurement: The 2 removable arm used for measuring angles from 85 to 180 can be used directly to measure all angles in this range. 3Error Free: The bottom plate is placed on the provided guide plate by means of the integrated guide pin of the saw and sawed using a back saw to achieve an accurate and error free diagonal cut. 4Strong Compatiblity: This tool is used to solve skirting or groove cutting corner problems that require special measuring tools for plumbing, home improvement, woodworking. 5Easy to Use: Measuring and sawing miter angles cutting tool use easily. Find the angle that needs to be measured, lock and then cutting. No tedious operation.1 x Corner Measuring Tool 1 x English Instruction4 x Guide Pillar