Makita 316840-9 Guide Rule provides accurate cutting guidance for improved precision and consistent results on compatible power tools. This replacement guide rule is designed to align the tool during cutting operations, helping maintain straight and controlled cuts. It works by serving as a stable reference that supports proper positioning and movement of the tool across the work surface. Suitable for repair or replacement, this component helps improve cutting accuracy, reduces alignment errors, and supports smooth, dependable operation while maintaining the intended performance of compatible equipment.