10 Best Pneumatic Grease Guns 2025 in the United States

The M18 Cordless 2-Speed Grease Gun (TOOL ONLY) by Milwaukee is a well-regarded option in the pneumatic grease gun category. This grease gun runs on the M18 battery platform, which means you won't need to worry about air consumption, but it also means that you need to own or purchase the compatible batteries separately as they are not included. This could be a drawback if you don’t already have other M18 tools and batteries.

Its relatively lightweight design at 9.43 pounds and dimensions of 20 x 10 x 4.5 inches make it portable and easy to handle, which is a plus for those needing to move around frequently while working. The tool's build quality is generally considered excellent, a typical hallmark of Milwaukee products, ensuring it should be durable and reliable for long-term use.

The 2-speed functionality is a notable feature, providing flexibility in pressure application, which can be very beneficial for different greasing tasks. This grease gun seems best suited for users who already have Milwaukee's M18 battery system and are looking for a reliable tool. However, those new to the system might find the additional cost of batteries an added expense.

The Lincoln 1884 PowerLuber is a robust battery powered grease gun ideal for automotive, agricultural, and industrial applications. With a pressure rating of up to 10,000 PSI, it is capable of handling tough grease fittings effectively. The 36-inch hose adds flexibility, making it easier to reach difficult areas. Its dual-speed feature allows for more control over grease flow, suitable for various tasks from light-duty vehicles to heavy machinery maintenance. The grease gun uses standard 14oz cartridges, ensuring compatibility and ease of use.

The built-in vent valve simplifies operation by purging trapped air, which is a significant advantage during priming. Furthermore, the ergonomic design and lightweight build reduce user fatigue, and the added LED light is a thoughtful touch for working in dim environments. The 20-volt lithium-ion batteries included provide sufficient power and convenience, although the air consumption is not applicable due to it being battery-operated rather than pneumatic.

The high build quality is reinforced by features like the hardened steel piston and high-torque motor, promising long-term reliability. The product is relatively heavy at 13.8 pounds, which might be cumbersome for extended use. The comprehensive warranty (5 years for the tool, 2 years for the battery) offers peace of mind, ensuring that users can rely on its performance over time.