10 Best Grease Gun 2025 in the United States

The Milwaukee 2646-20 M18 2-Spd Grease Gun is a cordless grease gun designed for automotive and heavy machinery maintenance. It boasts an industry-leading maximum operating pressure of 10,000 PSI, making it highly efficient for demanding lubricating tasks. The 48-inch flexible hose is a notable feature, allowing users to reach challenging and tight spots with ease.

Additionally, the air bleeder valve facilitates quick priming, reducing downtime and enhancing productivity. The lock-on/lock-off trigger adds to user convenience by making continuous operation less tiring, and the pre-set grease counter dial ensures precision in delivering the right amount of grease, minimizing waste and mess. However, it's important to note that this tool is sold as a bare tool, meaning it does not come with batteries or a charger, which could be an added cost and inconvenience for some users.

The build quality is robust with its metal construction, ensuring durability and longevity. The product's ease of use is further complemented by its cordless nature, powered by an 18-volt lithium-ion battery, making it highly portable. Users who perform regular maintenance on vehicles or machinery will find this grease gun particularly beneficial. Its five-year tool warranty offers peace of mind regarding its reliability and performance. While the lack of included batteries may be a downside, the performance and features make it a strong contender in the grease gun market.

The DEWALT 20V MAX cordless grease gun is a powerful and convenient tool designed to handle tough greasing jobs. Its battery-powered design makes it portable and easy to use without being tethered by cords or manual pumping. It delivers a strong pressure of up to 10,000 PSI, which is excellent for clearing clogged grease fittings quickly. The high-volume pump pushes grease at a fast rate, making it suitable for both heavy-duty and regular maintenance tasks. The 42-inch flexible hose is long enough to reach tight or hard-to-access areas, and the bright LED light helps you see clearly in dark workspaces. Users will appreciate the variable speed trigger, which allows precise control over grease flow, reducing waste and mess.

Build quality seems solid, with features like a no-mar foot to safely rest the tool on surfaces and a pump filter to protect the mechanism from dirt. The included battery and charger add value, ensuring you're ready to work right away. However, the grease gun is somewhat heavy at nearly 15 pounds, which might cause fatigue during extended use. Also, while the plastic construction keeps it lightweight, it may not feel as rugged as all-metal options for some users.

This model suits professionals and serious DIYers looking for a cordless, high-pressure grease gun with user-friendly controls and good reach. If you want something lightweight or purely manual, other options might be better, but for power and versatility, this DEWALT stands out.

The Lincoln 6917 Portable Air Operated Grease Pump is a pneumatic, double-acting grease gun with a 50:1 ratio, making it highly efficient for industrial applications that require dependable, high-output grease delivery. The 7-foot high-pressure hose and heavy-duty control valve with a universal swivel make it particularly adept at reaching hard-to-access fittings, which is a significant advantage for maintenance tasks in confined spaces.

The build quality is robust, with a steel exterior ensuring durability and longevity. Additionally, the included 4-wheel band-dolly makes it easy to maneuver around a workshop, enhancing its ease of use. The standard follower that wipes the 120 lb. drum sides clean while keeping the pump primed is a thoughtful feature that adds to its operational efficiency.

It's worth noting that despite its high performance, the unit is slightly bulky with dimensions of 20 x 8 x 39.1 inches, which could be a consideration for storage and portability. Also, weighing only 2.4 ounces seems unusual for its size, possibly indicating a typo or an error in the listed specifications. This grease gun is particularly suitable for those in industrial settings who need a reliable and powerful tool for frequent use.