10 Best Grease Guns

The DEWALT DCGG571M1 is a cordless grease gun powered by an 18V lithium-ion battery, which makes it easy to use without being tethered to a power outlet. It's designed to deliver a strong pressure rating of up to 10,000 psi, allowing it to handle tough, clogged grease fittings effectively. The high-volume pump can push grease at a rate of up to 5 ounces per minute, which is suitable for jobs requiring quick and consistent lubrication.

One battery charge can last through about 16 grease cartridges, so it offers good operational time between charges. A variable speed trigger helps control the flow, giving you precision when applying grease. The product is lightweight at around 1 kg, and its build quality reflects DEWALT's reputation for durable tools, making it a solid choice for both professionals and serious DIYers.

Since it runs on a battery, users should be prepared to manage battery charging for uninterrupted work. This grease gun is ideal for those looking for portability, power, and ease of use in a cordless package.

The KRETLAW Grease Gun is a heavy-duty pistol grip model designed for professional and serious DIY use. It offers a strong pressure rating of 7000 PSI, which means it can handle tough lubrication jobs on vehicles, tractors, and various machinery. The grease capacity is 14 ounces, using standard cartridges for easy refilling. One of its highlights is the included accessories: an 18-inch flexible hose plus two 12-inch spring hoses, plus multiple couplers and injector needles to reach tight or awkward spots. This makes it very versatile for different grease points.

The gun’s body is made from durable die-cast aluminum, giving it a solid feel and good resistance to leaks. It also has an air bleed valve, allowing you to quickly remove trapped air for smooth grease flow. Some users might find cartridge installation a bit tricky because of the metal ring on the grease tube, but once you get the hang of it, it’s straightforward. The design with a comfortable T-handle and quality internal parts ensures steady, ergonomic operation without much effort.

This grease gun suits vehicle owners, farmers, and workshop users who need a reliable tool for regular maintenance. Although it might be a bit heavier than simpler models, its robust build and comprehensive kit offer durability and flexibility in one package.

The Milwaukee M18 FPP2AI-502B stands out as a robust grease gun coupled with an impact wrench, making it a versatile tool for heavy-duty applications. It operates on an 18-volt Lithium-Ion battery, which suggests a strong performance and decent run-time, beneficial for tasks that require mobility without the hassle of cords. The 1356 Newton Meters torque is particularly impressive, indicating its capacity to tackle demanding jobs efficiently. In terms of build quality, it’s made from rubber materials, which should provide good durability and a secure grip during use.

The product is fairly heavy at 12 kg, which may pose a challenge for some users in terms of portability and ease of handling. Moreover, while it includes two 5.0Ah batteries, it might be considered over-engineered for casual users who might need it for simpler tasks.

This product is likely best suited for professionals or serious DIY enthusiasts who require a heavy-duty, versatile tool with additional impact wrench capabilities. Its high price might not be justified for those who only need a standard grease gun. The Milwaukee M18 FPP2AI-502B offers powerful features and quality construction, but its suitability depends significantly on the user's specific needs and work environment.