Steel rod / axle for use in robotics and DIY projects. Can be used as a guide rail for linear bearings in 3D printers and CNC machines. Technical data Material: 45 steel Diameter: 8mm https://elecena.pl/product/22626200/8mm-linear-guide-rail-optical-axis-3d-printer-cnc 2023-02-23 https://elecena.pl/product/22626200/8mm-linear-guide-rail-optical-axis-3d-printer-cnc 2025-10-28