What is the primary function of a diver's knife?

The primary function of a diver's knife is to cut entanglements and perform other tasks underwater. This makes it an essential safety tool for divers. In the aquatic environment, there is a risk of becoming entangled in fishing lines, nets, or other debris, which can pose a significant danger, particularly if a diver is unable to swim freely or quickly to the surface. A knife allows the diver to free themselves from such hazards, ensuring their safety and ability to navigate underwater.

Additionally, a diver's knife can be used for various purposes, such as cutting through marine growth, assisting in gear adjustments, or, in some cases, aiding in the retrieval of items. Its design is often streamlined to prevent snagging and to ensure that it can be easily accessed if needed during a dive.

While a diver's knife can certainly be useful in many situations under the water, it is primarily regarded as a safety tool for preventing entanglement, which underscores its importance in a diver's gear setup.