Two Pack 300mm Linear Guide Rails With Two MGN12H Carriage Blocks And Two Mini MGN12 Guides For DIY 3D Printers And CNC Machines Black Durable Bearing Steel Construction For Smooth Precise Motion And Easy Mounting On Makers Projects

300mm Linear Rail Kit with MGN12H Carriages for DIY CNC
✔️ Two 300mm rails, two MGN12H carriages, plus two mini guides

This compact linear guide rail kit is designed for DIY 3D printers and small CNC machines, delivering precise, smooth motion and straightforward mounting for maker projects.

✅ Linear Guide Rails: bearing steel, 300x12x8 mm each
✅ Carriage Block: MGN12H, stainless steel body
✅ Mini Linear Guide: plastic, assists installation and prevents ball loss
✅ End blocks provide collision protection and reduced wear
✅ Pack includes: 2 rails, 2 carriages, 2 mini guides

💡 What is a linear guide rail used for in hobby machines? This handy Q&A covers common questions about using these motion parts.

- Sealed ball bearing rails offer smooth motion and long life - 12 mm carriage blocks provide precise alignment and load capacity - Plastic mini guides help with quick alignment during install - Durable bearing steel rails and stainless carriages resist wear in printers and CNC setups