10 Best Cordless Grease Gun 2026 in the United States

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 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 Ecarke Cordless Grease Gun is a solid choice for those needing a portable, powerful tool for heavy-duty greasing tasks. It runs on DeWalt 20V batteries, which means if you already have compatible batteries, you can use them without buying extra. It offers a strong maximum pressure of 12,000 PSI and a fast grease flow rate of 8 ounces per minute, making it much quicker and less tiring than manual grease guns. With a 39-inch hose, it can reach tight or awkward spots easily. The tool weighs about 10.7 pounds, which is a bit on the heavier side but manageable with the included shoulder strap to reduce fatigue during use.

Its standout features include a dual 2-in-1 rotating handle that switches between a pistol grip and straight grip for flexibility, and a built-in LED light to help you see clearly in dark or cramped spaces. It works with both cartridge and bulk grease, supporting various grease types common in automotive and heavy machinery maintenance. The package also includes multiple couplers and a sturdy carrying case, adding to its convenience for professionals or serious DIYers.

A key consideration is that the product does not come with batteries or a charger, so owning compatible DeWalt 20V batteries is necessary to use it. Additionally, its weight might be a factor during extended use without breaks. For those seeking a cordless, high-pressure grease gun that is versatile and fast—especially suitable for farm, automotive, or construction equipment—the Ecarke model is a fitting option as long as the right batteries are available.