To check the height of multiple parts with gage blocks, what tool would a machinist use?

To check the height of multiple parts with gage blocks, using a dial indicator and a digital height gage is the most effective choice. The digital height gage provides precise height measurements, offering the ability to set a reference height with gage blocks and then check multiple parts against that reference. This combination allows for accurate and repeatable measurements, which is crucial in machining to ensure parts meet specified tolerances.

The dial indicator enhances this process by giving a visual indication of height changes, making it easier to detect small differences in height as the parts are measured. Both tools together allow for efficient setup and measurement without the need for constant recalibration or adjustment, which is essential for maintaining productivity in a machining environment.

Other tools, such as a laser level, micrometer, caliper, or ruler and square, might be useful for various measurements or levels, but they lack the specific features and accuracy necessary to check heights effectively against gage blocks, especially when dealing with multiple parts.