2 Pcs 3D Printer Part CNC Linear Rail MGN12H 400mm Miniature Linear Rail Slide Core Xy BLV Ender 3 Hotend Printer Kit

[Product Parameter]400mm MGN12H Rail Guide(including 14 Holes), MGN12C Linear Guide Slider Block. Suggest to use M3 T nut and screws if fixing it to 20 series EU Al-profile.
[Quality Assurance]Full body polishing of rail to increase surface smoothness. No resistance when the block works on the rail. Special design to prevent block beads missing. Made of low friction coefficients bearing steel.Rail is fully oiled.
[High Compatibility]Even the place of installation is not very smooth, the rail can work smoothly because the beads in the block is able to accept a little smoothness deviation. 78 beads is used on the block to highly improve the load capacity of rail. Able to satisfy most user needs.
[Wide Application]Applied in semiconductor manufacturing equipment, printed circuit boards, IC assembly equipment, equipment, robotic arms, precision measurement machine and other small linear motion device.

Colour:As shown
Material:Bearing steel

Package Contents:
2 x MGN12H 400mm Linear rail guide
2 x MGN12H block

Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.