- 4-point contact design provides load support from all directions, delivering high rigidity and accuracy. The slider moves smoothly for precise, easy operation. - Wide application: commonly used in automation machines such as DIY routers, lathes, milling machines, bending machines, welding machines, and similar equipment. - Quality materials: linear rails are made of carbon steel; linear bearings are made from high-quality bearing steel with aluminum alloy components. Chrome plating provides rust resistance, durability, and extreme hardness. - Easy installation: align the rail with the mounting interface and slide into place until fully seated. No maintenance required. - Applications: upgrade a DIY CNC router for smoother axis travel; enhance a small hobby milling or drilling machine for better repeatability; use in welding or bending fixtures requiring precise, guided motion.