2 PCS 12mm x 250mm (0.472 x 9.84 inches) Vigorous Linear Motion Guides, Case Hardened Chrome Shaft Linear Rail Rod Shaft for 3D Printer, DIY, CNC -

2 PCS 12mm x 250mm (0.472 x 9.84 inches) Vigorous Linear Motion Guides, Case Hardened Chrome Shaft Linear Rail Rod Shaft for 3D Printer, DIY, CNC -

What You Get: 2Pcs 12mm x 250mm Linear Motion Rod Pack Great Performance Material: 45# Carbon steel, Hardness about HRC55-62, Surface roughness about Ra0.05-08, Straightness≤0.1/1000mm, Chrome plated thickness about 0.02mm Tolerance: Diameter tolerance about -0.01to-0.03mm, Length tolerance about ± 0.2mm Humannized Design: Our linear motion guides are chamfered about C1.0--45°on both ends in order to ensure safety and easiness in assembling other parts on the rod shaft. Wide Application: Widely applied in CNC, 3D printer, automatic machinery, injection molding machine, engraving machine, etc. especially in bearing purpose.