VEVOR Linear Rail Kit, SBR20, 2Pcs 2000 mm (78.74 inch) Linear Motion Guide Rails and 4Pcs Bearing Slide Blocks, Fully Supported Shaft, for Cutting, Grinding, Milling, Drilling Machines, and More

SBR20 Linear Rail Kit: Includes two 78.74 in (2000 mm) linear rails and four slide blocks. It is compatible with cutting machines, grinding machines, milling machines, drilling machines, and other equipment,Rust & Corrosion Protection: Crafted from high-hardness carbon steel shafts (HRC58–66) and aluminum alloy blocks and supports. Each linear rail is coated with a more than 10 μm electroplated layer to resist rust and corrosion, even in humid basements,Silent & Smooth Sliding: Built-in ball-bearing slide blocks deliver quiet, low-friction motion while gripping the shaft tightly for stable linear travel. Less noise, less wear, more precision—every time you move,High Precision, No Deviation: Feature a 0.1–0.22 μm surface finish and 5 mΩ straightness, paired with precise hole diameter and spacing, this linear slide rail set ensures easy installation and repeatable positioning, even over long travel distances,Installation Made Easy: No extra installation tools are required. Designed with simplicity in mind, this linear motion guide rail kit installs quickly. It is suitable for DIY assembly or rail replacements