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10 Best Air Operated Grease Guns 2025 in the United States

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Our technology thoroughly searches through the online shopping world, reviewing hundreds of sites. We then process and analyze this information, updating in real-time to bring you the latest top-rated products. This way, you always get the best and most current options available.

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Our Top Picks

#1

Winner

Milwaukee 2646-22CT M18 2-Spd Grease Gun Kit W/2 Cmpt Bat

Rating
9.9
Chosen by1,278
Ease of Use

Most important from
731 reviews

Ease of Use
Great pump, very easy to use.

The Milwaukee 2646-22CT M18 2-Speed Grease Gun Kit is a popular choice in the automotive category, especially known for its ease of use and handling. One of its primary strengths is its dual-speed functionality, which allows for greater control and versatility. Additionally, its cordless design, powered by an 18-volt lithium-ion battery, enhances its portability and convenience, making it suitable for use in various settings without the need for an external power source.

The product's build quality is robust, with a metal construction that promises durability and a long lifespan, supported by a 5-year tool warranty. At 15.37 pounds, it is relatively heavy, which might be cumbersome for prolonged use. This grease gun is ideal for professionals in the automotive industry or heavy machinery maintenance who require a reliable and durable tool. However, the lack of included batteries could be a drawback for some users, necessitating additional purchases. Its metric measurement system may require some adjustment for users accustomed to imperial units.

Rating
9.9
Chosen by1,278
Ease of Use

Most important from
731 reviews

Ease of Use
Great pump, very easy to use.
#2

Milwaukee Bare-Tool Milwaukee 2446-20 M12 12-Volt Cordless Grease Gun (Tool Only, No Battery)

Rating
9.8
Pressure Rating (PSI)
Hose Length
Ease of Use

Most important from
1544 reviews

Pressure Rating (PSI)
High output pressure is great for worn kingpins, but care is needed when filling sealed ball joints and tie rod ends to avoid bursting the rubber seal.
Hose Length
The best power grease gun owned or used, with a generous hose length and spring strain reliefs aiding in gripping the fitting.
Ease of Use
Powered operation is perfect for situations where multiple hands seem necessary, making it easy to hold the fitting and squeeze the lever.

The Milwaukee 2446-20 M12 12-Volt Cordless Grease Gun is designed for ease of use and durability. It boasts a high output pressure of over 8,000 PSI, making it suitable for heavy-duty applications.

With a 14 oz. cartridge and 16 oz. bulk grease capacity, it can handle substantial amounts of grease, reducing the need for frequent refills.

The 36

Rating
9.8
Pressure Rating (PSI)
Hose Length
Ease of Use

Most important from
1544 reviews

Pressure Rating (PSI)
High output pressure is great for worn kingpins, but care is needed when filling sealed ball joints and tie rod ends to avoid bursting the rubber seal.
Hose Length
The best power grease gun owned or used, with a generous hose length and spring strain reliefs aiding in gripping the fitting.
Ease of Use
Powered operation is perfect for situations where multiple hands seem necessary, making it easy to hold the fitting and squeeze the lever.
#3

Lincoln 1162 Pneumatic Grease Gun with 30" High-Pressure Hose and Coupler, Variable Speed Trigger, 6,000 PSI, Fully Automatic, Continuous Operation, Combination Filler Coupler Air Bleeder Valve

Rating
9.5
Hose Length
Build Quality and Durability
Ease of Use

Most important from
2077 reviews

Hose Length
The 30-inch high-pressure hose allows users to reach deeper into tight spaces, enhancing usability for automotive and industrial applications.
Build Quality and Durability
Constructed with heavy-duty materials, this grease gun is built to last and handle demanding tasks without frequent interruptions.
Ease of Use
This grease gun makes the task of greasing so much easier, eliminating the mess often associated with hand-operated guns.

The Lincoln 1162 Pneumatic Grease Gun stands out in its category with a high-pressure rating of up to 6,000 PSI, making it effective for high-pressure applications such as lubricating CV joints, bearings, and zerk fittings. This high pressure ensures thorough lubrication, which is crucial for maintaining the longevity and performance of various equipment.

The inclusion of a 30-inch high-pressure hose with a coupler is a notable feature, as it allows users to reach tight and hard-to-access areas effortlessly, which is particularly useful in automotive and industrial settings. The continuous operation feature means this grease gun can handle demanding tasks without frequent interruptions, which is a significant advantage for professionals who need to complete extensive maintenance work efficiently.

The variable speed trigger adds to its ease of use, providing precise control over the grease flow, which can help prevent wastage and ensure proper lubrication. The combination filler coupler and air bleeder valve included in the design add convenience by simplifying the process of refilling and maintaining the grease gun. This makes it user-friendly even for those who may not have advanced technical skills. This grease gun is particularly suited for automotive, industrial, and marine applications, making it a versatile addition to a professional toolkit. If you regularly handle heavy-duty lubrication tasks and require a reliable, high-pressure grease gun with good reach and continuous operation capabilities, the Lincoln 1162 is worth considering.

Rating
9.5
Hose Length
Build Quality and Durability
Ease of Use

Most important from
2077 reviews

Hose Length
The 30-inch high-pressure hose allows users to reach deeper into tight spaces, enhancing usability for automotive and industrial applications.
Build Quality and Durability
Constructed with heavy-duty materials, this grease gun is built to last and handle demanding tasks without frequent interruptions.
Ease of Use
This grease gun makes the task of greasing so much easier, eliminating the mess often associated with hand-operated guns.

Buying Guide for the Best Air Operated Grease Guns

When it comes to choosing an air-operated grease gun, it's important to understand the key specifications that will determine how well the tool will meet your needs. These tools are essential for lubricating machinery and equipment efficiently, and selecting the right one can make your maintenance tasks much easier and more effective. Here are the key specs you should consider and how to navigate them to find the best fit for you.
Pressure Rating (PSI)The pressure rating, measured in pounds per square inch (PSI), indicates the maximum pressure the grease gun can generate. This is important because higher pressure allows for more efficient and thorough lubrication, especially in tight or hard-to-reach areas. Typically, grease guns range from 3000 to 6000 PSI. For light to moderate use, a lower PSI (around 3000-4000) may suffice. For heavy-duty applications, such as industrial machinery, a higher PSI (5000-6000) is recommended. Consider the type of equipment you will be lubricating to determine the appropriate pressure rating.
Air Consumption (CFM)Air consumption, measured in cubic feet per minute (CFM), indicates how much air the grease gun uses during operation. This is crucial because it affects the compatibility with your air compressor. Grease guns typically require between 3 to 6 CFM. If you have a smaller air compressor, you should look for a grease gun with lower air consumption (around 3-4 CFM). For larger compressors, higher air consumption (5-6 CFM) is manageable. Ensure your air compressor can handle the grease gun's air consumption to avoid performance issues.
Hose LengthThe hose length determines how far you can reach with the grease gun. This is important for accessing hard-to-reach areas on machinery. Hose lengths can vary from 18 inches to several feet. For general use, a standard hose length of around 18-24 inches is usually sufficient. For more extensive or complex machinery, a longer hose (36 inches or more) may be necessary. Consider the size and layout of the equipment you will be working on to choose the appropriate hose length.
Cartridge CapacityThe cartridge capacity indicates how much grease the gun can hold at one time. This is important for determining how often you will need to reload the grease gun. Capacities typically range from 14 to 16 ounces. For occasional use or smaller jobs, a lower capacity (14 ounces) may be adequate. For frequent use or larger jobs, a higher capacity (16 ounces) will reduce the need for frequent reloading. Think about the volume of lubrication tasks you perform to decide on the right cartridge capacity.
Build Quality and DurabilityThe build quality and durability of the grease gun are crucial for ensuring long-term reliability and performance. This includes the materials used in construction, such as metal or high-grade plastic, and the overall design. A well-built grease gun will withstand the rigors of regular use and harsh working conditions. For professional or heavy-duty use, look for grease guns made from durable materials like steel or aluminum. For lighter, occasional use, a high-quality plastic model may be sufficient. Assess your usage frequency and working environment to determine the necessary build quality.
Ease of UseEase of use encompasses features like ergonomic design, trigger mechanism, and ease of loading cartridges. This is important for reducing user fatigue and ensuring efficient operation. Look for grease guns with comfortable grips, smooth trigger action, and straightforward cartridge loading mechanisms. If you will be using the grease gun for extended periods, ergonomic features become even more critical. Consider how often and how long you will be using the tool to prioritize ease of use features.

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