The best part of working with machines is the efficiency and the convenience they give you. Tools make work easier and should reduce your efforts when doing work. When the efficiency of the machines is compromised, the efforts applied in doing the job are increased, and this adversely influences the outcomes.
Often, the efficiency of the machines is affected when energy is lost through friction between the moving and stationary parts of the machines. In such an instance, you do not need to destroy or dump your tool. Instead, you should apply a lubricant to reduce the frictional forces.
The lubrication of the machine parts makes them slippery and plays an essential role in bearing, machine function, and longevity by reducing wear and tear. The friction can be reduced through the greasing of the different parts.
The market today, however, is characterized by numerous grease guns, and getting the best to suit your purpose can be a challenge. I have done intensive research, described and listed the best cordless grease gun models, and provided a comprehensive and informative buyers’ guide to help you make the best purchase decision.
Best Cordless Grease Gun Reviews 2023
1.DEWALT 20V MAX Cordless Grease Gun
Dewalt 20V Max is one of the most powerful cordless grease guns available in the market today. The tool has a longer run time as it is powered by a 20v lithium-ion battery that can last up to 16 standard size cartridges, which is a long time for lubrication purposes on workshops and garages.
The model is powerful enough for use, both commercially and within your homes. The tool delivers up to 10000psi of pressure, and its flow rate is 50z/minute, ensuring faster lubrication and guarantees that the lubricants reach the grease fittings.
Dewalt gives you the luxury of using different speeds on your projects. Sometimes, high speed may result in wastage of grease depending on the area of application. The tool comes with a variable speed trigger that will allow you to operate it using multiple speeds.
You can be sure of getting a durable machine when you purchase this tool. Most of the best cordless grease guns get damaged by dirt that clogs the pumping mechanism. However, the Dewalt model is integrated with an anti-debris device that keeps the dirt away from the pumping mechanism.
The tool gives you the convenience of greasing every part of the machines, even the hard to see grease fittings in low light conditions. The tool gets fused with an LED light system to help illuminate the darker parts of the machine for enhanced visibility.
The model boasts an ample and flexible 42” long hose that will also allow you to reach the hard reach parts of the machine.
Moreover, you can have full confidence when you buy this model as it is covered with a 3-year warranty and a one-year free service. This shows that the issues of manufacturers’ defects are significantly reduced.
Pros
- LED lights
- Powerful motor
- 3-year warranty
- Anti-debris mechanism for protection
- Variable speed
Cons
- Minor complaints about grease quality
2.Milwaukee 2646-20 M18 2-Spd Grease Gun
Milwaukee 2646-20 is another model that will allow you to perform both slow and fast greasing. The model is equipped with a two-speed trigger to help you change the speed from low to high and vice-versa.
Quick greasing may not be effective in hard to see places in a machine and may lead to wastage of the grease. The model allows you to vary the speed for slow greasing.
With the model, you can dispense a preset amount of grease, minimizing wastage. The practice is essential, especially for the newbies who may not have mastered how to control the dispensation speed, though the professionals may also benefit from the same. A pre-set greaser counter helps you manage the amounts of grease from the grease gun.
Like Dewalt, the model has a higher run time of up to 10 standard size cartridges at a time. This is ensured by its 18V lithium-ion battery that provides it with the needed power for extended use.
The inconveniences of work breakdowns when the grease runs out are minimized with this model. The tool comes with a plunger rod with markings to help indicate the grease level in the barrel, allowing for continued work.
The rate of grease dispensation is 10oz/minute flow rate, higher than most of the models in the market. The flow rate ensures that you can easily lubricate the tighter areas that cannot easily get reached with a slower flow rate.
The worries on the manufacturer defects are reduced by this machine as a 5-year warranty covers it, and this makes you trust the brand.
Pros
- Plunger rod markings to indicate the level of grease in the barrel
- High flow rate
- Pre-set greaser counter for controlled greasing
- 5-year warranty
- LED lights for increased visibility.
- High Lubrication Pressure
Cons
- Not appropriate for beginners
3.Lincoln 1162 Fully Automatic Pneumatic, Air-Operated Grease Gun
Lincoln allows you to control the flow of the grease from the gun with its variable speed trigger. The model is fully automatic and permits continuous operation and grease flow, an aspect that enhances the convenience when greasing. 
The model can be effectively used in a workshop or garage since it is sturdy and robust and can be useful for the professionals to put it to many uses. The garage and workshops also require durable models, and the strengths of this model offer just that.
The tool can deliver grease at a pressure of 6000psi, allowing for the easy cleaning of the hardened and contaminated grease. Its 30” flexible hose also allows you to lubricate the parts of the machine that are less accessible.
The model can quickly be loaded by 14oz grease cartridge, and this will help realize extended use. It is, however, covered by a one year warranty, and this helps eliminate the issues with the manufacturing defects.
Pros
- Easy to use.
- Simple design
- High-pressure delivery
- Variable speed
Cons
- Not heavy duty
4. Lumax LX-1152 Black Heavy Duty Deluxe Pistol Grease Gun with 18″ Flex Hose
If you need a massive duty tool with the power for extended use and unprecedented comfort, I recommend you choose the Lumax LX-1152 model. The model is fitted with a heavy-duty cast head with a pressure of 7000psi, excellent for professionals.
The machine also boasts a heavy 18 gauge steel barrel that ensures its durability. You will not need to worry about occasional breakdowns or maintenance practices that can result in the stoppage of work. You are sure of reduced maintenance practices with this model, and this reduces the cost of maintenance.
The accidental discharge is minimized with this model, and this implies reduced wastage. The tool is equipped with a follower rod lock that prevents unauthorized discharge. The follower rod lock gives you the control of grease dispensation to the grease fittings.
Lumax is also fused with an air bleeder valve that eliminates the air pockets. The bleeders are durable and robust, which adds to the robustness of this model, which is a perfect choice for professional use.
Pros
- Easy to use
- Faster loading
- Air bleeder valve for reduced air pockets
- Reduced wastage through accidental discharge
Cons
- The manual not very elaborate
5.Lincoln 1134 Extra Heavy Duty Pistol Grip Grease Gun
Unlike with the Lincoln 1162, the 1134 model is an extra heavy-duty model and versatile. The model is easy-to-use, and this makes it ideal even for the non-professionals and the homeowners.
The tool is durable and robust due to the rugged cast pump that gives it enhanced strength.
Even though some people may not like the weight of this model as it is slightly heavy, the model is excellent as its follower spring helps you realize positive priming and uninterrupted pumping action.
The chances of lubricant bypass
are effectively reduced when you are using this model. The tool is embedded with a dual-lip follower and hardened plunger that will minimize the bypass of the lubricants, limiting grease waste, hence economical. The features also ensure a cleaner work environment.
The high pressure delivered by this tool enables you to use it for high-tolerance applications. The machine is characterized by a variable stroke mechanism that permits the high pressure for more robust applications.
The model allows you to reach or access almost any grease fitting for efficient lubrication. The gun is made of an 18-inch whip hose and 6-inch rigid extension that allows for the convenient access of every part of the grease fitting.
Pros
- Fast priming
- Easy to use
- Versatile
- Economical
Cons
- Its manual is not elaborate.
6. GreaseTek Premium Pistol Grip Grease Gun
Grease Tek Gun is another model designed for convenient priming and loading. This model has an improved plunger design for easy priming.
You will enjoy an additional pistol grip handle, and a knurled barrel helps enhance the grip, improving the holding comfort and convenience when using the tool.
The tool has an 18-inch flexible hose that permits access to every part of the grease fitting, enabling you to grease every part of the machine that requires lubrication.
You can effectively position the gun in any area of your convenience when using it to help aim at the grease fittings. The model is fitted with a bleeder valve and bulk filler valve, in addition to the positioning grease loader that will allow for multiple positions when in use.
Pros
- Easy to use
- Variable positions
- 18-inch flexible hose for easy access of grease fittings
- Improved plunger design for convenient priming
Cons
- The nozzle can get stuck on the Zerk.
7.REXBETI Grease Gun, Pistol Grip Grease Gun Set with 18 Inch Flex Hose
Rexbeti grease gun is a durable tool that will serve you for a long time as it is sturdy and robust. The machine is constructed out of steel, a durable material to help enhance its strength.
The model has a working pressure of 6000psi that enhances the grease strokes that the tool delivers before it is primed again.
The model is embedded with a thickened rubbery sleeve around the knurled barrel that offers an added grip in the slippery situations. The grip also helps for optimal usage since it provides for a suitable grip mechanism.
The pistol grip also helps create plenty of leverage that you need for extended use with the machine. The grip helps improve the comfort in your hands when handling the tool.
The tool is easy to operate. The concerns of the rust to the steel parts is also minimized through the addition of small amounts of lubricating oil to help prevent the grease gun from rusting, enhancing its longevity. It is thus reasonable to find oil in the grease gun.
Pros
- Solid steel canister that makes it durable
- Easy to operate
- Comfortable due to an effective handle grip
- Lubricating oil to prevent rusting
Cons
- The bolts might be hard to move.
8. Lnchett Grease Gun, Professional Pistol Grip Grease Gun
Lnchett boasts a solid construction with a heavy-duty steel barrel that ensures its durability and robust performance. The smart engineering design and the steel barrel construction ensures that you can efficiently work with the model.
The inserted orange sleeve and the pistol grip with a knurled barrel also ensure the model’s comfortability. The grip handle establishes plenty of leverage for all-day comfort, and this allows for extended use. The orange sleeve around the barrel offers an added grip in slippery situations.
The tool comes with two reinforced standard couplers and two metal extensions that will allow you to access almost any grease fitting for efficient lubrication.
Pros
- Pistol grip for user comfortability
- Heavy-duty steel barrel for durability.
- Reinforced standard couplers for enhanced access to grease fitting
Cons
- Zerk fittings are hard to remove
9. STEINBRÜCKE Bravex Heavy Duty Professional Pistol Grip Grease Gun 6000 PSI
A Steinbrucke Braxex Grease gun is one of the tools that, without doubt, will give you the efficiency that you need for the grease fitting.
There is no doubt about the durability of this tool as its canister is built with a cold drawn steel tube that enhances its strength and robustness, and hence durable.
The model is fitted with an O-ring sealed, high-pressure piston design that helps prevent the grease from leaking from the head of the pump when working under high pressure. This prevents wastage, hence, economical.
This model’s design allows for the easy flow of the grease to the various parts of the machine. The flow of grease from the gun only requires the compression of the handle. This enhances the ease of use of this model. Even non-professionals can conveniently use it.
Pros
- Aesthetic design
- Durable
- Easy to use
- Reduced leakage, hence economical.
Cons
- The fittings in the tube require an extra tool to tighten.
10.Neiko 12000A 12V Cordless Grease Gun
The Neiko Model operates at a pressure of 6500PSI, a faster speed than a hand-pump grease gun. The model is convenient as it is compatible with the zerk fittings.
Like most of the models I have reviewed, the durability of this model is also unquestionable. The model is made of rugged ABS and steel that makes it sturdy and durable.
The air bubbles are reduced in this model by its vent valve. The reduction in the air bubbles is essential as it also facilitates the ease and smooth flow of the grease, improving the efficiency of this machine.
With Neiko, you can effectively reach tight places of grease fittings. The model gets characterized by a flexible 30” hose that ensures that you can reach the close areas, promoting the convenience with which you execute your role.
The model enjoys a high reservoir capacity that is integral in holding the standard grease cartridges. The reservoir can hold up to 14.05 grease cartridges and are easy to swap out and can be filled by suction or pump. This guarantees extended use of the tool and can be effective for professional practice.
Pros
- Lightweight
- Extended use
- Flexible 30” hose for flexibility
- Vent valve to reduce the air bubbles ‘
Cons
- Inserting the zerk fittings may be a challenge
11. CARBYNE Heavy Duty Professional Quality Pistol Grip Grease Gun
The model boasts a robust and durable design that will provide you with extended use. A Carbyne heavy duty gun is made from an anodized aluminum barrel that ensures high tolerance, making it more durable.
The model is equipped with a heavy-duty pistol grip with knurled handles that ensure a good grip when working with the grease gun. The pistol grip results in less pressure in your hands, enhancing the comfort of use.
Also, the 12-inch flexible hose fitted in this model enables you to work on various machine parts, including the tight areas that the gun cannot easily reach. It also allows for the flexibility that you need to lubricate multiple surfaces or areas such as lawns, trucks, production lines, and machinery.
The air bubbles during the operation of this tool are also minimized by its air bleeder valve and the 6-inch rigid extension that reduces the air bubbles present in the grease surface. This facilitates the smooth flow of the grease to the areas of application.
Pros
- Ergonomic design
- Heavy duty
- Air bleeder valve for reduced air bubbles
- Durable
Cons
- Tight stock Coupler
12. UTOOL Grease Gun
UTOOL model is a useful and robust tool that can be used both at home and for industrial applications. 
The model operates at 7000PSI, sufficient for fast and extended usage. Its iron ensured the maximum working pressure die-cast head and enhanced sealing, ensuring that the machine has the needed strength to contain the high pressure, which is a powerful performance tool.
The machine boasts an automatic exhaust valve that simplifies the process of bleeding air and allows for easy maneuverability.
The tool boasts an ergonomic design with a pistol grip that allows you to operate with one hand, increasing the ease of use effectively. Moreover, the non-slip knurling enhances the friction for safety.
Also, the model’s anode is coated with silver, and this facilitates its cleaning, hence easy maintenance practice.
Pros
- Enhanced grip
- Durable, made of sturdy materials
- High pressure
- Easy maneuverability
Cons
- Bad coupler
Best Cordless Grease Gun Buyers’ Guide
What is a Grease Gun
A grease gun refers to a standard workshop and garage tool utilized in the lubrication of machine parts. The grease gun applies the lubricant to particular points through an aperture to a grease fitting. The channels behind the grease fittings direct the grease to where the lubrication is required.
The lubrication helps reduce friction between the moving and steady parts of the machine, and this helps improve the engine’s efficiency. The lubrication also helps improve the lives of the tools, reducing wear and tear due to frictional forces in the process.
Why you need a grease gun
- Minimized wastage. Grease gun gives you control of the amount of oil that comes from the gun to the grease fittings. You also have the control of when you should release the trigger and when you shouldn’t. In the process, you can control the usage of the grease, preventing wastage. You only release the trigger when and where the oil is needed and ensure that you release the required amounts.
- It improves the longevity of your machine. The gun helps enhance the life of your machine. This ensures you do not consistently invest in another gun, saving you both money and time.
- Improves saturation. The gun constricts the oil or grease, precisely where it is needed, and gives you the best greasing output. The constriction or saturation ensures you aim to the point that requires greasing, also minimizing wastage.
- Enhanced speed and accuracy. With the grease gun, you are assured of accuracy and application of the right speed. The grease guns come with different flexible inches of the hose. The hose sizes ensure that you target the right grease fittings, improving the accuracy. You can pull the trigger to ensure speed by varying the pressure, depending on how fast you intend to do the greasing.
Generally, a grease gun is an essential tool you should consider having not only within your garage or workshop but also within your homes to work within your lawns. The tool ensures enhanced productivity and accuracy and minimizes wastage. It helps save costs, hence an economical tool.
Why you should choose Cordless grease guns
Corded grease guns are hard to use, especially when you are using them in hard to reach areas. The cordless type will help you reach various areas where the corded once may not reach and thus will facilitate greasing. The cordless guns are portable and thus facilitate easy movement.
Also, since they are battery-powered, you can effectively recharge the batteries or change them if the batteries are compatible with those of the other models in your tool collection. Thus, the cordless tools give you the convenience and efficiency needed to execute the various grease fitting projects.
Factors to consider when buying a grease gun
PSI Level
The pressure produced by different models varies from one tool to the other. The higher the PSI value, the faster the machine dispenses grease and, thus, an essential consideration when making a purchase decision.
Most of the products I have reviewed have PSI ranges between 4500 to 12000PSI. When you are working on a construction site, or you are a professional, you can go for a model with a higher PSI value from 6000PSI since such a model will provide you with a high-pressure output for extended use.
On the other hand, if you are working on fragile machinery or products, you should choose a model with a low PSI level, below 6000PSI. In such a case, you should also consider a model that is lightweight or more basic for light work.
Size
The size of the grease gun you buy is also an essential determinant in making purchase decisions. If you’re a professional or have more than one workshop or garage, movements between these places will be involved.
If you need to travel with your tool, then I recommend you go for the smaller, smaller model rather than a standard size tool.
The only disadvantage with such a tool is that it can have fewer features and reduced pressure levels and may not be applied for extended usage. In such a case, it would be great for use on a small scale, within homes, and in your lawns.
Warranty
One of the most compelling features that you need to consider before you invest in any brand is the warranty period. It is no doubt that some products, whether new or used, sometimes come with manufacturing products that we may not identify at the time of purchase.
I recommend that you go for a model with at least a one-year warranty to cover for the defects that you may experience during the period to be covered by the manufacturers. It also prevents organizations from selling counterfeit goods.
The duration of a warranty given by an organization always translates to the amount of trust you should have and that an organization has on their products. The higher the warranty, the more durable and efficient the tool is worth your investment.
Handle grip
Comfort is an essential feature when you are deciding on the best cordless grease gun to buy. The comfort allows for extended use with the machine and also improves the convenience and efficiency of your work output.
A handle grip is an essential feature you must consider when buying the best cordless grease gun as it ensures comfort when using the machine.
Various models come with a comfortable, rubberized pistol grip https://www.machinerylubrication.com/Read/313/grease-gunswhile some are suitable to operate single-handedly. The pistol grip handle and the knurled barrels aid improve the grip, improving the holding comfort when you use the machine.
You should also consider having a feel of the model you want to buy and evaluate if you will be comfortable when working with the tool. Look for a well-built handle on a grease gun.
The below video show a step-by-step process of changing cartridges in a grease gun
Conclusion
Choosing the best cordless grease gun can be a daunting task, especially when you are buying for the first time. The robust information in the internet sources even makes it more confusing, and your determination to get the best model for your project can be thwarted by such monotonous information online.
However, I have researched and listed twelve best models and provided essential features that will help you make the best purchase decision. Feel free to read through and get the best model that will serve you right.
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