Product Summary: Coavoo Linear Rod Shaft 2Pcs 10mm x 400mm, Diameter 10mm Case Hardened Chrome Plated Smooth Linear Motion Rod Shaft Guide Rail - Metric h8 Tolerance L 2pcs Diameter 10mm x 760mm chrome linear shaft steel straight smooth sturdy rod bar, Length (0., 39 x 29., 92) The case hardness could be reach to 58-64 HRC., Durable and corrosion-resistant - We can process the end of the rail as you need, some examples you can see the image 4 Linear Motion Rod Shaft Guide D 10mm X L 29.92 Inch / 760mm Case Hardened Chrome Plated For 3d Printer Diy Cnc Metric H8 Tolerance 2pcs C45 Carbon Steel Rod 2pcs Diameter 10mm x 760mm chrome linear shaft steel straight smooth sturdy rod bar, Length (0.39 x 29.92) Adapting 45# high quality steel, Good bending resistance, high frequency quenching, surface chromium plating (15um-20um Humanization Design: Chamfer on both ends, easier to install linear bearings and won't hurt fingers when installing it Brand: CoavooMaterial: High Quality Carbon Steel (C45#)Hardness: 58-64 HRCSurface Hard-thickness: 0., 8 – 2., 5mmSurface Roughness: 0., 8S – 1., 6SStraightness: Below 5μm/100mmSurface Chrome Thickness: 15um-20umSurface Finish Quality: Ra 0., 8Color: SilverThis package includes: 2Pcs 10mm x 760mm Linear Rail Shaft RodsbPlease Note:- We can offer the linear motion rail shaft rod in any length, pls contact us. 10mm linear shaft 100 150 200 250 300 400 410 420 450 500 550 We can customise the linear rail, including the length and finishing.