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 Lincoln 6917 grease gun is a pneumatic, air-operated model designed for heavy-duty use with a strong 50:1 pressure ratio. This means it can deliver grease efficiently even to hard-to-reach or tough fittings, making it suitable for professional mechanics or industrial settings. It features a double-acting pump which helps provide a steady and dependable grease flow, reducing the effort needed compared to manual guns. The included 7-foot high-pressure hose and universal swivel nozzle add flexibility and ease when working in tight spots. The standard follower inside the drum wipes the sides clean, keeping the pump primed and reducing grease waste.

Additionally, the four-wheel drum dolly allows smooth movement around a workshop, which improves convenience if you need to transport the grease drum often. Made with durable steel, this unit is built to last and withstand regular industrial use. Its weight and size might be less ideal for casual or light home use, as it’s designed for larger grease drums and more frequent operation. Also, as a pneumatic model, it requires an air compressor to operate, so it’s not portable on its own. This grease gun is best suited for users who need a reliable, high-output tool for heavy maintenance tasks and have access to compressed air equipment.