Features 1、[Aluminum Alloy Material] The trimming machine guide rail is made of aluminum alloy with excellent rust resistance and professional grade durability, suitable for long term use. 2、[Effective Screw Contact] Large contact area screws prevent impressions on the rail during operation, ensuring smoother cutting. 3、[Adjustable Design] The limit block of the milling guide rail can be adjusted easily by loosening the large screw first and the small screw. 4、[Smoothly Operation] With smoothly back plate, the engraving guide rail ensures smoothly sliding during operation, enhances efficiency. 5、[Lock Design] The woodworking guide bracket features a lock design that allows for one key fix of the sliding distance, reducing operation errors and ensuring precise work. Specification Item Type: Trimming Machine Guide Rail Material: Aluminum Alloy Specification: 500mm Package List 4 x Trimming Machine Guide Rail 2 x Clamp 4 x Sliding Bar 4 x Washer 4 x Screw 1 x Wrench