The JBM air grease gun offers the following functions and benefits:

Easy and quick lubrication: It allows for easy and quick application of grease to various parts and mechanisms. Instead of using your hand or other tools to apply the grease, you can use the air grease gun to evenly spread the grease on the desired parts, thus saving time and effort.

Precision and efficiency: It allows control over the amount of grease applied, as well as the air pressure used. This ensures precision in application and can help save grease. Additionally, the air grease gun can reach hard-to-access areas that are difficult to reach with other tools.