Best Grease Gun Reviews of 2021
DEWALT DCGG571M1 20V MAX Cordless Grease Gun
Powerful gun with an interchangeable battery that ensures high-flow applications and continuous operation.
1 DEWALT DCGG571M1 Review
The DEWALT DCGG571M1 is one of the most versatile grease guns on the market. Perfect for high-flow applications and portable, this tool comes complete with a reliable 20V MAX 4.0Ah interchangeable battery easy to replace with a charged one when drained. Together with the powerful pump capable of delivering 10,000 PSI, the gun adapts to all industrial and amateur demands. Its high-volume pump can push up to 5oz/minute, while the long hose allows operators to reach even the hardest to reach grease fittings.
Ideal for lubricating industrial machinery, vehicles, and home workshop tools, this grease gun comes with a convenient LED light and an innovative anti-debris filter screen. Suitable for all applications, easy to operate, and portable, the DEWALT DCGG571M1 is the best grease gun in its class.
Lincoln 1162 Air Operated Grease Gun
Affordable industrial performance
An automatic variable speed trigger ensures a superior grease flow control.
2 Lincoln 1162 Review
An industrial-grade grease gun, the Lincoln 1162 is ideal for those searching convenient performance. Able to deliver a maximum grease pressure of 6,000 PSI and fully automatic, this power tool comes with a variable speed trigger developed to ensure a continuous and reliable grease flow control. A series of accessories including a high-pressure hose with attachment clip and coupler add up to the unit’s versatility and allow you to use the gun for a wide range of purposes.
Thanks to the pneumatic operation, you’ll never have to worry about drained batteries, while an advanced pump design eliminates priming. Ready to handle heavy-duty demands, lightweight, and reliable, the Lincoln 1162 is undoubtedly the best grease gun to buy for the money.
LockNLube LNL153 Pistol-grip Grease Gun
An excellent alternative
This gun’s lock-n-lube coupler lives up to expectations, delivering leak-free lubrication.
3 LockNLube LNL153 Review
The LockNLube LNL153 might not be as powerful as our best value or best in class, but the lower pressure rating is easy to ignore when you find out that it doesn’t leak at all. So, if you’ve had enough of grease guns that leak grease everywhere and are a nightmare to operate, this one’s for you.
Perhaps the only thing to be aware of is the diameter of the nozzle, which is slightly larger than standard. This isn’t an issue in most cases but could be if you need to fit in tighter areas.
Apart from this, there is nothing not to love about it. It’s easy to operate and holds in the grease beautifully when not in use. A great choice for lubricating most types of machinery.
Lincoln Lubrication 1134 Heavy Duty Pistol Grip Grease Gun
Convenient pistol grip gun
Jam-proof toggle and extra-heavy follower spring prevent binding and provide uninterrupted operation.
4 Lincoln 1134 Review
The Lincoln 1134 is an ultra-easy to operate pistol grip grease gun developed to deliver roadside convenience and a pocket-friendly solution for amateur applications. Strong and durable, the tool comes with a rugged cast pump head that resists intense use and an extra-heavy follower spring that eliminates priming and ensures continuous application. With a pressure of 7,500 PSI and 14.5oz cartridge size, the gun is perfect for most lubrication demands of workshop machinery or vehicles.
Easy to maintain thanks to its accessible valve and jam-proof mechanism, easy to operate and resistant, the Lincoln 1134 is ideal for the DIYer and it won’t break the bank.
1. Why invest in a grease gun?
A grease gun helps lubricate vehicles and machinery fast and easy. The main reason why you need one is greater accuracy in application, but the tool also helps lubricate your machines faster.
This equipment also helps reduce lubricant wastage by allowing you to control how much substance is applied by spraying it exactly where it’s needed thanks to the flexible hose or tube it comes with.
Grease guns are often used in garages, but this tool comes in handy in a domestic environment too. You can use it to lubricate:
2. Types of grease guns
- Pneumatic grease guns: Developed for industrial use, these grease guns are the most powerful. They can withstand high-volume demands and heavy-duty applications, but their mobility depends on the size and portability of the air compressor.
- Cordless grease guns: Like most cordless power tools, they are powered by batteries. Typically powerful enough to withstand high volume demands, these tools are portable and can be used Ideal for the roadside lubrication of the trucks but also perfect for industrial or home use.
- Pistol grip grease guns: These guns are easy to use with a single hand, and the grip is suitable for both right- and left-handed operators. Pistol grip guns are also inexpensive and allow for excellent control of the flow, which makes them ideal for amateur and light professional use.
- Manual pump grease guns: Are similar to the bicycle pumps in that the operator is required to perform a pumping action to drive the grease. Slightly harder to use than the pistol grip models, they are also ideal for amateur and light-duty use.
- Lever grease guns: Ideal for light-duty applications and often preferred by DIYers, these guns are extremely easy to use and the cheapest. However, they are also less precise, and it’s harder to control the grease flow.
3. Grease PSI and output
Two essential features of a grease gun are the pressure of the grease and the grease output.
Most grease guns available on the market are designed to deliver between 2,000 and 15,000 grease PSI depending on the model. In broad lines, you can expect a PSI:
- From 2,000 to 10,000 – manual grease guns
- Up to 6,000 – pneumatic grease guns
- From 2,000 to over 15,000 – cordless grease guns
Higher pressure increases the tool’s performance by providing a better flow, but working at high PSI isn’t always the best idea. Before deciding which is the best grease gun for you, check the specifications of the machinery you want to lubricate.
Some bearing seals can’t handle pressures over 500 PSI, and in this case, a too high PSI of the gun can compromise the bearing shields or seals. If this happens, it is very likely to damage the motor of your vehicle or machine.
Most guns have a grease output between 0.5 and 3 grams per stroke, but the actual output varies based on the type, model, and age of the tool. Determining the real output of your grease gun is crucial to prevent grease-related disorders such as over- or under-greasing.
The easiest way to calculate the output is with a calibrated scale. Alternatively, invest in a gun with a grease meter that allows you to measure the quantity of grease dispensed at each stroke. Some of the higher end models come with digital displays that ensure a quick and simple monitoring of both the PSI and the output.
Common grease-related disorders
Using a grease gun in the wrong way can result in under-greasing or over-greasing.
- The most common under-greasing symptom is bearing starvation which increases friction wear.
- Among the most common over-greasing symptoms we can mention motor windings and the damage of the seals. These are often accompanied by fluid friction that leads to overheating and higher energy consumption.
4. Grease loading method
Most grease guns come with replaceable cartridges that contain the grease dispensed by the gun. The lower-end models and most of the manual guns can accommodate a single cartridge which has to be replaced when empty. Professional grease guns can accommodate around 15 cartridges, a feature to look for if you intend to use the tool for high-volume industrial demands.
Regardless of how many grease cartridges the gun can hold, it is essential to check the loading method. Stay away from those guns that have awkward or cumbersome chambers, as it may take forever to change the cartridge.
5. Tube vs. hose
Grease guns come with either a fixed tube or a flexible hose. Choosing one over the other is a matter of practicality.
- Fixed tubes: Are ideal for the lever and pump style guns, because the model of the tool requires to use both hands for operation.
- Flexible hoses: Are perfect on the pistol grip style guns (including pneumatic and cordless), as you can use one hand to operate the trigger and the other to hold the hose in position. Due to its flexible nature, a hose is ideal for lubricating hard-to-reach spots.
6. Fittings and adapters
Other important things to check are the grease gun fittings and adapters (or couplers) which determine whether or not the gun is suitable for the purpose.
Grease gun fittings
There are four main types of grease gun fittings:
- Standard hydraulic fitting: Is developed for conventional operations and is the most commonly used.
- Pressure-relief vent fitting: Hinders the too high pressure, protecting the seals from damage.
- Button–head fitting: Releases a high amount of grease and is ideal for lubricating the connectors.
- Flush-type fitting: The smallest type, is perfect if you have to lubricate compact
Grease gun adapters
Just like the fittings, the adapters come in four common types:
- Standard hydraulic adapter: The most common one, used for standard operations.
- Three–jaw swivel adapter: Perhaps the most versatile, it is compatible with many fittings and adapts to many situations.
- 90–degree adapter: Ideal to use in restricted sections thanks to its L shape.
- Needle-end adapter: It is long and narrow, perfect to reach the thin
7. Other features to consider when buying a grease gun
Besides all the above, there are a series of other features that can enhance your user experience:
- Built-in lighting comes in handy if you have to work in dark conditions or lubricate hard-to-reach and poorly illuminated areas.
- If you want to use the gun to lubricate different types of machinery, invest in a tool with multi-speed operation.
- The type of battery and its runtime are other features to consider, if applicable. The best cordless grease guns are those with interchangeable Li-Ion batteries.
- Another thing to check is the size of the gun. Choose one that is compact, lightweight, and easy to handle.
- Self-priming models provide a continuous flow of substance and are easier to handle, while an automatic speed trigger ensures a reliable control of the output.
8. The Best Grease Gun for the Money
Lincoln 1162 Air Operated Grease GunAffordable industrial performance
An automatic variable speed trigger ensures a superior grease flow control.