What is a glass hand saw primarily used for?

The glass hand saw is specifically designed for the purpose of removing glass in a controlled and safe manner. This tool features unique teeth that allow it to cut through glass without shattering it. It is particularly useful in rescue situations where access through glass windows or windshields may be required for extricating occupants from a vehicle. The design of the saw helps prevent further injury from flying glass shards, making it an ideal choice for emergency responders.

While the other options address various uses of different tools or potential functions in emergency scenarios, they do not accurately represent the primary role of a glass hand saw, which is focused on the safe and effective removal of glass.