Broad application: The linear guide rail is widely used in automation equipment such as DIY routers, lathes, milling machines, bending machines, welding machines, and related systems. Premier Linear Guiding System: A precise combination of the main axis rail and aluminum alloy housing that stabilizes the rail. The standard block uses an industrial-grade block with a high-precision linear bearing assembly inside. Quality materials: The rails are carbon steel; the linear bearings are high-grade bearing steel with an aluminum alloy housing. Chrome plating provides anti-rust protection, durability, and hardness. Easy to use: Four-point contact design supports loads from all directions, delivering strength and high accuracy. The slider moves smoothly with minimal effort for convenient operation. Use scenarios: Ideal for upgrading a DIY CNC router to improve positional accuracy; building or retrofitting a metalworking lathe or milling machine for precise alignment; creating welding jigs or bending fixtures with repeatable straight travel.