- Stable, high-performance connection between your router and guide rail. The adapter provides a smooth and flat contact surface to ensure precise and professional woodworking results. - Compact router adapter design. The left side connects to routers (fits perfectly with the router), and the right side is designed to fit the guide rail securely. - Precision and reliability. The adapter can be cut precisely and straight, and the rail-contact portion is smooth and flat with no gaps, allowing it to slide smoothly and stably along the rail. - Durable, high density construction. Not 3D printed; well made, with a smooth, flat surface. It is hard, resistant to damage, and cold-resistant. - Use scenarios: - Attach a router to a guide rail for straight, guided cuts along long boards. - Use in edge routing or groove routing where a fixed path is required for repeatability. - Mount a router to a guide rail for cabinet making or joinery tasks that demand consistent, straight routing.