English 
Guide Rail Cutter is a tool used to cut along a guide rail. Guide rails are often used to support and guide the movement of some mechanical equipment or tools, such as power saws, cutters, etc. The function of a Guide Rail Cutter is to make accurate and precise cuts by fixing to the guide rail and moving along its length. This tool usually has a sharp cutting blade that is able to cut along a predetermined track on the guide rail to ensure accuracy and straightness of the cut.
