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.