12 IN 1: 2 moving arms, measuring angles from 85 degrees to 180 degrees, all angles within this range can be measured directly. Suitable for 30mm/2in wide skirting boards. 2INCREASED EFFICIENCY: The bevel angle can be measured and the cut completed, eliminating the need to use multiple tools and avoiding errors when passing the correct angle to the saw. 3ACCURATE SAWING: Place the baseboard on the guide provided and use the back saw to make the cut.The saw uses the back saw to make accurate and error free miter cuts. 4PRACTICAL TOOL: This tool is used to solve the problem of cutting corners at footings or recesses where special measuring tools are required for plumbing, home improvement, and carpentry work. 5DURABLE DESIGN: Made of ABS, PC, stainless steel, lasts for years. Practical tool to make your woodworking projects easier and solve the problem of cutting corners at ledges or recesses.