Four Pack 8 mm By 400 mm Case Hardened Chrome Linear Rods For 3D Printers DIY CNC Machines Precision Shafts With Chrome Plating Hrc 62 Tolerance From 7.97 To 7.995 Mm

Four Pack 8mm x 400mm Chrome Plated Linear Rods for CNC
✔️ Chrome-plated 8mm shaft, HRC 62, length 399.5 to 400.5 mm

These chrome-plated precision linear shafts deliver smooth, accurate motion in CNC machines, 3D printers, and automated equipment.

✅ Material: C45# carbon steel with chrome plating 10um-20um
✅ Hardness: HRC 62 ± 2
✅ Diameter: 8.0 mm, tolerance 0.005-0.030 mm (7.970-7.995)
✅ Length: 400.0 mm, tolerance ±0.5 mm (399.5-400.5)
✅ Package includes: Four-pack total (2 pcs 8x350 mm shafts)

💡 What is an 8mm chrome-plated linear shaft used for in CNC and 3D printers? This handy shaft acts as a precise guide rail for smooth, repeatable motion.

1) Used in CNC routers and 3D printers for accurate linear movement

2) Chrome plating increases wear resistance and longevity

3) Tight tolerances ensure reliable bearing interfaces