VEVOR Linear Guide Rail 2Pcs HGR20-1700mm Linear Slide Rail with 1Pcs RM1605-1700mm Ballscrew with BF12/BK12 Kit Linear Slide Rail Guide Rail Square for DIY CNC Routers Lathes Mills
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【1700MM HGR20 Linear Guide Rail】- This linear guide rail set includes 2 pieces of HGR20-1700mm linear guide rail, 4 blocks, 1pcs anti-reverse RM1605-1700mm ballscrew, 1pcs RM1605 ball nut, 1pcs BF12/BK12 nut, and 1pcs 8 x12mm plum coupling.
【HIGH-QUALITY STEEL MATERIAL】- Linear guides are made of carbon steel, linear bearings made of GCr15 bearing steel. Surface chrome plating treatment beautiful anti-rust, hardness can as high as HRC62, more durable.$165.99