Two 20mm By 400mm Linear Motion Rods Chrome Plated Solid Case Hardened Shaft Guide For CNC Rigs DIY Projects 3D Printers Model Cars And Planes Smooth Durable And Precise

Two 20mm x 400mm Linear Motion Rods for CNC and 3D Printers
✔️ Two 20x400 mm chrome-plated, hardened 45# steel shafts for precision

These chrome-plated linear motion rods provide smooth guidance for heavy-duty projects like CNC rigs, 3D printers, engraving machines, and automation setups. They’re designed to handle high-load linear motion with low friction and long service life.

✅ Size: 20 x 400 mm (OD x L) / 0.79 in x 15.75 in
✅ Material: 45# steel with hard chrome plating for rust and wear resistance
✅ Hardness: quenched surface HRC58-60
✅ Pack: 2 pieces included for immediate use

💡 What is a 20x400 mm linear motion rod used for in CNC builds and 3D printers in hobby projects?

- Guides axis movement with precision for repeatable results - Chrome-plated surface reduces friction for smoother operation - Pairs with 45# steel shafts for a reliable, long-lasting setup ✝️