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High-Precision DIN7 Steel Helical Teeth Gear Racks for CNC Applications. High Precision Grade 5: Precision milling rack reaches grade 5 for high consistency and small deformation. Quenched and Tempered: Whole rack undergoes heat treatment with ironed surfaces for high positioning accuracy. Customizable Length: Available in 500mm, 1000mm, 2000mm or fully customized lengths. Wide Material Options: Offered in C45, 42CrMo, SS304, SS316, nylon, and POM materials. Multiple Precision Grades: Precision grades DIN5 through DIN10 available to meet specific needs. Versatile Applications: Ideal for automation, robotics, CNC machines, and automatic welding fields. OEM Accepted: Full OEM customization services accepted for designs and samples.