Which tool is frequently employed to transfer measurements from blueprints to workpieces?

Calipers are commonly used to transfer measurements from blueprints to workpieces due to their versatility and ease of use. They can measure both internal and external dimensions, making them ideal for accurately replicating measurements onto a material. With the ability to measure in both metric and imperial units, calipers allow for precise transfer of dimensions from drawings directly to the workpiece. This capability is essential in ensuring that components are made to the exact specifications outlined in the blueprints, which is a critical aspect of job planning and layout in machining and fabrication processes.

Other tools like micrometers offer high precision for measuring small dimensions but are less suited for transferring those measurements onto larger workpieces. Protractors are primarily used for measuring angles rather than linear dimensions, which limits their usefulness for this specific purpose. A scriber is used for marking lines or points on a workpiece, but it does not measure dimensions in the same way that calipers do, making it less effective for transferring measurements directly. Thus, calipers stand out as the most functional and relevant tool for this task.