10 Best Grease Guns 2025 in the United States

The DEWALT 20V MAX Grease Gun stands out in the grease gun category, thanks to its impressive features that cater well to both professionals and DIY enthusiasts. With a powerful motor delivering up to 10,000 PSI, this cordless grease gun can efficiently tackle clogged grease fittings, making it a reliable tool for automotive and heavy machinery maintenance. Its high-volume pump pushes out 5.0 oz/min, which ensures quick application for larger jobs.

One of the standout features is the 42-inch long flexible hose that allows access to hard-to-reach areas, which is particularly beneficial when working in tight spaces. The variable speed trigger offers control over the grease flow, providing precision for delicate tasks. Additionally, the bright LED light helps in illuminating dark work areas, which enhances usability.

On the durability front, DEWALT is known for producing sturdy tools, and this grease gun is no exception. The no-mar foot design allows it to be rested on flat surfaces without causing damage, and the air-bleeder valve aids in efficient pump priming after cartridge changes. Furthermore, the three-year limited warranty and money-back guarantee add peace of mind for potential buyers. The DEWALT grease gun is sold as a bare tool, meaning you will need to purchase the battery separately, which can be an added expense if you don’t already own DEWALT's 20V MAX batteries. Weighing in at 8 pounds, it might feel a bit heavy for prolonged use, especially for those who are not accustomed to handling such tools. Additionally, while the price point is justified by its performance, it may be higher than some budget models, making it less accessible for casual users. This grease gun is a solid option for those who require efficiency and reliability from their tools, particularly in professional settings, while casual users might find the investment to be significant unless they plan to use it frequently.

The Milwaukee 2646-20 M18 2-Spd Grease Gun stands out in the grease gun category due to its impressive features and user-friendly design. With a maximum operating pressure of 10,000 PSI, it provides significant power, making it suitable for heavy-duty applications and ensuring efficient lubrication for various machinery and equipment. The 48-inch flexible hose is a notable advantage, allowing users to reach difficult spots easily, which is often a challenge with traditional grease guns. Additionally, the air bleeder valve simplifies priming, helping you get started quickly without hassle.

User convenience is enhanced with the lock-on/lock-off trigger feature, allowing for more controlled operation during lengthy tasks, reducing fatigue. The inclusion of a pre-set grease counter dial is a unique touch, helping users track how much grease is dispensed, which is particularly helpful for maintenance tasks that require precise measurements.

However, there are a few drawbacks to consider. Firstly, this model is sold as a bare tool, meaning that you will need to purchase the battery and charger separately if you don't already have them, which could add to the overall cost. Moreover, while the metal construction contributes to its durability, the device's weight of 4.21 pounds might be a bit cumbersome for some users, especially during prolonged use. With a 5-year warranty, Milwaukee also shows confidence in the product’s longevity. If you're looking for a powerful and efficient grease gun for automotive or industrial applications, the Milwaukee 2646-20 is a strong contender despite some additional investment in accessories.

The Lincoln 917 High Pressure Pneumatic Grease Pump is designed for professional use, especially suited for those needing to handle large 120 lb grease drums. It operates at a strong 50:1 pressure ratio, which means it can efficiently deliver thick grease to tough lubrication points. Its pneumatic (air-powered) operation makes it easier to use compared to manual grease guns, reducing effort and speeding up work. The 7-foot hose offers good flexibility to reach grease fittings that are hard to access.

Durability is supported by a sturdy painted exterior, a drum cover, and a roll-around base for mobility, making it practical in busy workshop environments. The included follower plate helps ensure you get the most grease out of the drum without leaks or waste. It is compatible with common grease types (NLGI 1 and 2), which covers most industrial and automotive applications.

The unit is quite heavy (over 46 pounds), which might make it less convenient for quick jobs or smaller setups. Also, as a pneumatic tool, it requires an air compressor, so it's not ideal for users without that equipment. This grease gun is an excellent choice for professional or heavy-duty use, providing reliable, high-pressure grease delivery with good capacity and ease of use in demanding environments.