Why are dial calipers widely used as a precision measuring instrument on the shop floor?

Dial calipers are widely used on the shop floor because they offer a combination of accuracy and ease of use. They allow for precise measurements of internal and external dimensions, as well as depths, making them versatile for various applications in manufacturing and machining environments. Their design features a dial that displays measurements clearly, making it easy for operators to read and interpret results with confidence.

One of the key advantages of dial calipers is their portability. They can be easily carried around the shop floor, enabling users to take measurements wherever needed without the hassle of cumbersome equipment. This convenience enhances productivity, as workers can quickly switch between tasks and avoid delays associated with moving to a dedicated measuring station.

In contrast, while dial calipers are indeed cost-effective compared to some other precision measuring tools, portability and ease of use are greater contributing factors to their popularity. Although they don't measure very large dimensions compared to tools designed specifically for that purpose, such as measuring tapes or laser distance measures, their range of measurement is adequate for most tasks in typical shop environments. Finally, while they are relatively straightforward to use, some degree of training is often beneficial to ensure users can take accurate measurements reliably and understand how to read the dial accurately.