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 GEVEELIFE Electric Grease Gun is a cordless, electric model designed for heavy-duty use, making it suitable for farmers, mechanics, and construction workers who need efficient and powerful greasing tools. It delivers a strong 12,000 PSI pressure, which is significantly higher than most manual grease guns, allowing faster application and the ability to handle thick grease and tough machinery. Its dual-mode operation and compatibility with both bulk grease and cartridges add versatility, so users can choose the most convenient grease source for their task.

The 2-in-1 battery system with two 4000mAh batteries provides long-lasting performance, enabling maintenance work across multiple vehicles without frequent recharging. The fast charger and compatibility with Makita batteries add convenience, especially for professionals needing zero downtime. The 39.4-inch flexible hose paired with a 90° swivel coupler improves access to tricky greasing points, and the built-in LED light is a thoughtful touch for working in dim conditions.

Durability is a highlight here—the aluminum motor housing and leak-proof design show this grease gun is built to withstand tough environments. The IP54 rating means it will resist dust and splashes, which is great for outdoor and jobsite use. The adjustable shoulder strap also helps reduce fatigue during extended use. While the weight of about 12.5 pounds might feel a bit heavy compared to simpler manual models, especially for casual users or light tasks, the strong battery life supports extended use though it still requires recharging, which may limit use in remote areas without power access. This grease gun is an excellent choice for those wanting cordless convenience, powerful pressure, and durability for demanding greasing jobs and is best suited for users who regularly maintain large equipment and appreciate features that save time and effort.