400mm Linear Rail Guide With MGN12H Stainless Steel Black Carriage Block For DIY 3D Printers And Machines Type H Maker Grade Precision Sliding System Kit

400mm MGN12H Linear Rail with Stainless Steel Carriage Block
✔️ 1x 400mm rail (15.74") and 1x MGN12H block, steel, preloaded

A maker grade precision sliding system kit designed for DIY printers and machines, delivering smooth, accurate motion on linear axes for hobbyist projects and small automation setups.

✅ 400mm rail length (15.74") with MGN12H stainless steel carriage
✅ End stoppers prevent the block from falling off
✅ Preloaded carriage; includes spare steel balls
✅ Great for DIY 3D printers and maker projects

💡 What is a linear guide rail used for in DIY machines? This handy system keeps motion straight and smooth for a range of projects. - precise, reliable motion for printers and small CNCs - easy mounting with MGN12H carriages - durable stainless steel rail for long life