Which method is commonly used to measure components during assembly?

Digital calipers are a widely used tool for measuring components during assembly due to their versatility, accuracy, and ease of use. They are capable of measuring both internal and external dimensions, as well as depths, which is essential in sheet metal structures where precision is critical. Their digital display provides a clear, immediate reading of measurements, reducing the chance for misinterpretation that can arise with analog tools. Additionally, digital calipers can often switch between metric and imperial measurements, making them adaptable for various tasks.

In contrast, while micrometers offer very precise measurements, they are typically better suited for specific scenarios where detailed measurements of small dimensions are needed rather than general assembly work. Steel tapes, although useful for longer measurements and straightforward applications, lack the precision required for small components typically encountered in sheet metal assemblies. Reference jigs serve a different function by providing a physically set guide or template for parts alignment and positioning rather than direct measurement, making them important for ensuring consistent assembly but not as a primary measurement tool.