10 Best Air Grease Gun 2025 in the United States

The DEWALT 20V MAX Grease Gun is a robust tool designed for automotive and industrial applications. With a maximum pressure rating of 10,000 PSI, it excels at handling clogged grease fittings, making it powerful enough for demanding tasks. The grease gun delivers up to 5 oz/min, suitable for high-flow applications, which should suffice for most standard grease jobs.

The 42-inch hose length is a significant advantage, allowing users to reach difficult and tight spots with ease. Its build quality is reinforced with a sturdy design and features like the integrated no-mar foot, which helps stabilize the tool on flat surfaces. The bright LED is a thoughtful addition for working in dark areas, enhancing usability.

The variable speed trigger provides control over grease flow, adding to the ease of use, while the air-bleeder valve assists during pump priming after cartridge changes, simplifying maintenance. However, the product is sold as a bare tool, meaning batteries are not included, which can be a drawback for those who don't already own compatible DEWALT batteries. With a weight of 8 pounds, it’s relatively heavy, which might be a concern for prolonged use. Additionally, the tool comes with a solid warranty. This grease gun would be especially beneficial for professionals in automotive repair and heavy machinery maintenance needing a powerful, versatile, and durable tool.

The Milwaukee 2646-20 M18 2-Spd Grease Gun stands out with its impressive 10,000 PSI max operating pressure, making it suitable for tough jobs requiring high pressure. Its 48-inch flexible hose is a significant advantage, allowing users to reach difficult fittings with ease. The air bleeder valve is a practical feature for quick priming, reducing downtime, while the lock-on/lock-off trigger enhances user convenience by allowing continuous operation without constant pressure on the trigger.

Additionally, the pre-set grease counter dial offers precision in application, which is beneficial for tasks requiring exact amounts of grease. This grease gun is cordless, operating on an 18-volt lithium-ion battery (not included), which eliminates the need for a separate power source and enhances portability. The build quality appears robust with its metal construction, promising durability. However, the fact that batteries are not included could be seen as a drawback, requiring an additional purchase if you do not already own Milwaukee M18 batteries.

The product's weight of 4.21 pounds might be a consideration for prolonged use. Nonetheless, the 5-year tool warranty is a reassuring aspect, reflecting the manufacturer’s confidence in its durability. This tool is ranked #13 in Grease Guns and fits well within the automotive category, making it ideal for professionals and serious DIY enthusiasts who need a reliable and powerful grease gun.

The Milwaukee 2446-20 M12 12-Volt Cordless Grease Gun is a robust option for those looking to handle maintenance tasks with ease. It boasts an impressive output pressure of over 8,000 PSI, ensuring efficient grease application, making it suitable for heavy-duty usage. The grease gun can accommodate up to 14 oz. in a cartridge or 16 oz. in bulk, providing flexibility based on your needs.

It's engineered for durability and ease of use, evidenced by its ergonomic design and lightweight construction at 7.2 lbs. The integrated hose storage and an LED fuel gauge enhance convenience, while the air bleeder valve ensures a quick flow, minimizing downtime. A significant benefit is its ability to dispense up to 7 cartridges per charge, although you should note that the battery and charger are sold separately.

This may incur additional costs, but the product's 5-year warranty offers some reassurance of its long-term reliability.