350mm MGN12 Linear Rail Guide with Black MGN12H Carriage Block - High Precision Linear Motion System for 3D Printers, CNC Machines, Laser Cutters and DIY Projects | Smooth Movement for Industrial Automation and Robotics Applications

There are 2 red rubber stoppers on the ends of the rail in case the carriage falls off the rail, please remove them after assembling the rail on your machine if necessary. Packing list: 1 * MGN12 linear rail guide 350mm length 1 * MGN12H black carriage block(been installed on the rail) 2 * steel balls(for backup)

350mm MGN12 linear rail guide with Black MGN12H block

There are 2 red rubber stoppers to keep the block on the rail

Threaded holes of the block 4-M3*3.5; center distance of the holes 20*20mm

There are 14 holes on the rail for fixing the rail to the machine with M3 nut and screw, and it is suggested to use T nut M3 if you fix it to 20 series EU Al-profile

Come with 2 spare balls in the package for backup