Improving accuracy in wire insulation thickness measurement is essential for ensuring product safety, durability, and compliance with industry standards. The most effective way to achieve consistent results is by using a cable insulation sheath specimen slicing machine, which creates smooth, uniform cross-sections without deforming the material. Precise specimen preparation allows microscopes and digital gauges to capture true thickness values with minimal error. Regular calibration, controlled environmental conditions, and multi-point measurements further enhance accuracy. By eliminating manual cutting errors and ensuring repeatability, manufacturers can reduce defects, maintain quality control, and meet global cable testing requirements with confidence.