10 Best Cordless Grease Gun 2025 in the United States

The DEWALT 20V MAX Grease Gun is a solid choice for anyone looking for a reliable cordless tool to handle lubrication tasks, especially in automotive or machinery settings. With a maximum pressure of 10,000 PSI, it can effectively power through clogged grease fittings, making it a strong performer for demanding tasks. Its high-flow pump pushes out up to 5.0 oz/min, catering well to high-volume applications, which is a significant advantage for users needing to dispense grease quickly.

The variable speed trigger allows for better control over the grease flow, which can help prevent wastage and enhance precision. Additionally, the 42-inch flexible hose is a standout feature, enabling users to reach tight spots and difficult angles, which is often a challenge with traditional grease guns. The built-in LED light is a thoughtful addition, helping to illuminate dark work areas, ensuring that you can locate even the most hard-to-see grease fittings.

However, there are some aspects to consider. The tool is sold as a bare unit, meaning it does not come with batteries included, which could be an issue if you do not already own compatible DEWALT batteries. Weighing in at 8 pounds, it may be slightly heavy for prolonged use, particularly in overhead applications.

The Milwaukee 2646-20 M18 2-Spd Grease Gun is designed for automotive enthusiasts and professionals who require a reliable and powerful tool for grease application. With an impressive maximum pressure of 10,000 PSI, it easily handles a variety of tasks, ensuring efficient lubrication even in challenging conditions. The 48-inch flexible hose is a standout feature, allowing users to access hard-to-reach fittings without hassle. Additionally, the air bleeder valve enables quick priming, which is particularly useful when starting a new grease cartridge. The lock-on and lock-off trigger enhances user convenience, making it easier to operate for extended periods.

This grease gun is a bare tool, meaning it does not come with a battery or charger, which could be a drawback for users who do not already own Milwaukee’s M18 battery system. Although it has a reasonable weight of 4.21 pounds, it might still feel cumbersome for prolonged use compared to some lighter models on the market. Moreover, while the grease counter dial is innovative for tracking grease usage, it may take some time for new users to get accustomed to the precision it offers.

The Milwaukee 2646-20 M18 is a sturdy and efficient grease gun that excels in performance and accessibility, making it suitable for those who regularly handle equipment maintenance. Potential buyers should consider their existing battery compatibility and whether they prefer a lighter option for extended use.

The Ryobi 18V Volt Cordless Grease Gun P3410 stands out as a robust tool designed for efficient and sturdy grease application. With a maximum pressure of 10,000 PSI and a flow rate of 7.5 ounces per minute, it offers high efficiency, making it suitable for those who need to handle heavy-duty greasing tasks quickly. The steel grease tube enhances its durability, ensuring it can withstand regular use without frequent wear and tear.

One of its user-friendly features is the 30-inch flexible hose, which is particularly beneficial for reaching difficult-to-access grease fittings. This makes it a practical choice for automotive maintenance, especially in tight spaces. Additionally, the onboard LED work light is a thoughtful inclusion, aiding visibility in dimly lit areas and further enhancing its utility.

However, the product is sold as 'tool-only,' meaning it does not include the necessary battery or charger. This could be seen as an inconvenience, particularly for first-time users who may not already own compatible Ryobi 18V batteries. The weight of the unit at 8.15 pounds is relatively moderate, but could still pose a challenge for prolonged use or for those who prefer lighter tools.

The Ryobi P3410’s lithium battery compatibility ensures reliable power, and the absence of battery requirements in the package might appeal to existing Ryobi users who can utilize their current batteries. Its ranking as #47 in grease guns and the high customer rating of 4.7 out of 5 stars suggest a generally positive reception, indicating satisfaction with performance.

This cordless grease gun is ideal for DIY enthusiasts or professionals who need a powerful yet flexible tool for maintenance tasks. However, potential buyers should consider the additional cost of purchasing a battery and charger if they don't already own them.