Calibration tools are instruments used to adjust and verify the accuracy of measuring devices. They ensure that tools like thermometers, pressure gauges, and scales provide precise readings, which is crucial in various fields such as manufacturing, healthcare, and scientific research. Regular calibration helps maintain quality control and compliance with industry standards. These tools can include calibration weights, reference standards, and calibration software. By using these tools, technicians can compare the measurements of a device against a known standard and make necessary adjustments. This process helps prevent errors and ensures reliable performance in critical applications.