What should be done if a gage block does not provide a proper fit?

The appropriate action when a gage block does not provide a proper fit is to replace the gage block. Gage blocks play a crucial role in precision measurements, and if they are not fitting correctly, it often indicates that they may be damaged, worn, or otherwise compromised. A faulty gage block can lead to inaccuracies in measurements, which can ultimately affect the quality and precision of machining work.

Replacing the gage block ensures that you are using a tool that meets the necessary specifications for precise measurement. Accurate measurements are critical in machining processes to ensure that parts meet design tolerances, and using a defective gage block can lead to errors that cascade through the production process.

Other options like re-checking the measurement process or calibrating equipment might be relevant in diagnosing measurement issues, but if the gage block is the identified problem, replacement is the direct solution to ensure ongoing accuracy. Dismantling tools is typically unnecessary and unrelated to the issue at hand.