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

Using a dial indicator and digital height gage is the most effective method for checking the height of multiple parts with gage blocks. A digital height gage offers precise height measurement and allows for quick adjustments and readings, streamlining the process of verifying part dimensions. The dial indicator further enhances accuracy by measuring slight variations in height, providing feedback in a more visible and straightforward manner.

This combination is particularly well-suited to handle multiple parts efficiently, as both tools are designed specifically for height measurements and provide the level of precision required in machining tasks. The digital display of the height gage also helps reduce human error in reading measurements, thus maintaining high accuracy in measurements over time.