10 Best Cordless Grease Guns 2026 in the United States

The Milwaukee 2646-22CT M18 2-Spd Grease Gun Kit is a durable and user-friendly cordless grease gun, making it an excellent choice for automotive and heavy equipment maintenance. With an 18-volt lithium-ion battery, it provides a reliable power source for efficient grease application. The kit includes two compact batteries, ensuring you have a backup when needed.

Weighing in at 15.37 pounds, it is relatively heavy, which might be tiring during extended use. However, its durability and robust performance could justify the extra weight for many users. The product's ease of use is another plus, designed to be straightforward to handle even for those who might not be familiar with cordless grease guns. It features a two-speed design, allowing for better control over grease output and maximum pressure.

It ranks well in customer reviews with a 4.3 out of 5 stars rating, indicating satisfaction with performance and reliability. The 5-year tool warranty is also a significant advantage, offering peace of mind for long-term use. For those in need of a dependable and efficient cordless grease gun, this Milwaukee model is a solid choice, although the weight might be a drawback for some users.

The DEWALT 20V MAX Grease Gun is a powerful cordless tool designed for heavy-duty grease applications. It boasts a motor that can deliver up to 10,000 PSI, making it capable of handling clogged grease fittings with ease. The high-volume pump can push up to 5.0 oz/min, which is ideal for high-flow applications. With a 42-inch flexible hose, this grease gun can easily reach hard-to-access areas, and the integrated bright LED light helps to locate grease fittings in dark work environments.

The variable speed trigger allows for precise control over the grease flow, which is a handy feature for different tasks. It also includes an air-bleeder valve that assists in pump priming after cartridge changes, ensuring smooth operation. The grease gun has a no-mar foot design that allows it to rest on flat surfaces without causing any damage. However, it is important to note that this model does not include batteries, so you will need to purchase them separately. At 8 pounds, it is relatively heavy, which might be a drawback for prolonged use.

Additionally, it comes with a 3-year limited warranty, 1-year free service contract, and a 90-day money-back guarantee, providing peace of mind. The DEWALT 20V MAX Grease Gun is a reliable and robust option for those looking for a high-performance cordless grease gun, particularly in automotive and industrial settings.

The Milwaukee 2646-20 M18 2-Speed Grease Gun is quite impressive for those looking to simplify grease application tasks. With its industry-leading maximum pressure of 10,000 PSI, this gun is capable of handling tough jobs, making it a solid choice for automotive and heavy machinery maintenance. The 48-inch flexible hose adds to its versatility, allowing users to reach those hard-to-access fittings with ease. Additionally, the air bleeder valve enhances efficiency by enabling quick priming, which can save time and frustration during operation.

User convenience is a notable strength here; the lock-on/lock-off trigger provides a better grip and control, reducing user fatigue during prolonged use. The pre-set grease counter dial is a unique feature that offers precision and helps users keep track of their grease application, which can be a game-changer for those who need accuracy in their work.

However, there are a few drawbacks to consider. The grease gun does not come with a battery included, which means you'll need to factor in the cost of purchasing one separately if you don’t already own compatible Milwaukee M18 batteries. This could be a stumbling block for beginners who might not be ready for additional expenses. The weight of 4.21 pounds is moderately manageable, but it could become cumbersome during extended use for some users, especially in tight spaces.