10 Best Cordless Grease Gun 2026 in the United States

The DEWALT 20V MAX Cordless Grease Gun is a strong choice for anyone needing a powerful and reliable grease gun for automotive or heavy machinery maintenance. It runs on a 20V lithium-ion battery with a solid 4.0 Ah capacity, offering good runtime and convenience since it includes both battery and charger. This gun can deliver up to 10,000 PSI, which means it can easily tackle clogged or tough grease fittings without much effort. The high flow rate of 5.0 oz/min helps speed up greasing tasks, which is handy when working on multiple fittings.

The Milwaukee 2646-20 M18 2-Spd Grease Gun is designed for automotive enthusiasts and professionals who require a reliable and powerful tool for grease application. With an impressive maximum pressure of 10,000 PSI, it easily handles a variety of tasks, ensuring efficient lubrication even in challenging conditions. The 48-inch flexible hose is a standout feature, allowing users to access hard-to-reach fittings without hassle. Additionally, the air bleeder valve enables quick priming, which is particularly useful when starting a new grease cartridge. The lock-on and lock-off trigger enhances user convenience, making it easier to operate for extended periods.

The Milwaukee M18 Grease Gun Kit is a solid cordless grease gun that runs on an 18-volt lithium-ion battery with a 1.5 Ah capacity. This battery setup offers a good balance of power and runtime, suitable for typical maintenance jobs without being too heavy. Weighing about 14 pounds, it is on the heavier side, so it might feel a bit bulky for extended use or for users who prefer lighter tools.