525441-2 is a wire/slip gauge handtool package designed for measuring and verifying wire sizes according to AWG (American Wire Gauge) standards. The gauge package includes a wire/slip gauge handtool, a storage box (part number 523225-3), and a gauge-specific certificate of calibration to ensure measurement accuracy. The tool features both GO (green) and NO-GO (red) size indicators for reliable wire size verification, with labeling that displays the wire size in AWG and corresponding measurements. This gauge is commonly used in electrical assembly, quality control, and wire verification applications where precise AWG measurement is required to ensure proper conductor sizing and compliance with specifications.