10 Best Grease Guns 2026 in the United States

The DEWALT 20V MAX Cordless Grease Gun is a powerful and convenient tool for anyone needing to grease machinery or vehicles without the hassle of cords. With a robust pressure rating of up to 10,000 PSI, it can handle tough, clogged grease fittings effectively. Its battery-powered design offers mobility, and the included 20V lithium-ion battery ensures you have enough power for high-flow applications, pushing grease at 5 ounces per minute.

The 42-inch flexible hose is a nice touch, making it easier to reach tight or hard-to-see grease points, especially with the helpful built-in LED light illuminating dark areas. The variable speed trigger allows you to control grease flow smoothly, which can prevent over-greasing and waste. It also features useful elements like an air-bleeder valve for easy pump priming and a no-mar foot that lets you set the tool down without damaging surfaces. Durability-wise, the tool feels solid and well-made, backed by DEWALT's 3-year warranty.

At nearly 15 pounds, it’s somewhat heavy, which might be tiring for extended use. The plastic body, while durable, may not feel as rugged as some all-metal alternatives. Battery life is decent but depends on usage intensity, so having spare batteries might be necessary for long jobs. This grease gun suits professionals or serious DIYers who value power, portability, and precise greasing control, especially when working in hard-to-reach areas.

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 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.