The Best Cordless Grease Gun to Buy for All Your Greasing Purposes

As a DIY enthusiast or a professional mechanic, certain tools can never miss in your tool boxes. A grease gun is one of them. I must admit it, manually greasing bearings is too labor intensive for me. And imagine the mess after, with the grease all over you.

With the invention of electric grease guns, this daunting task suddenly seems a lot easier and more fun. You don’t have to be dragged to lubricate moving parts in your workshop or in the course of your job.

Of the electric grease guns, the cordless models provide you with the most convenience. With these, you have a limitless range of movement combined with being able to take your tool anywhere without needing a charging means for a while.

This is why you need the best cordless grease gun. These would allow you to keep the car’s suspension links and ball joints working in perfect harmony. Finding that perfect grease gun is the only problem that most people face. We have therefore put together this review to help you make informed choices for your DIY greasing arsenal. 

Things to Put into Consideration Before Buying the Best Cordless Grease Gun

Cordless grease guns are not born equal. Some deliver superior performances than others. Finding the best is therefore not an easy task given the numerous options available. However, when you are armed with this buying guide, be sure to end up with the best of the best.

1. Amount of Pressure The Gun Generates

Via https://www.toolstop.co.uk/dewalt-dcgg571m1-18v-xr-cordless-grease-gun-whats-the-features-and-spec-a1409

Delivery of the required amount of pressure is what makes a grease gun good at its job. Depending on the nature of the particular task you will be doing, you might want certain amounts of pressure to be delivered by the gun.

You need to choose the amount of pressure carefully as it determines how well the parts will be lubricated. All in all, you need the highest pressure that your budget can allow. For high-pressure professional needs, 10,000 PSI should generally ensure proper greasing for you.

However, some people might not need such powerful performances. You could need a gun to grease your bikes, washing machines or even treadmills. With these tasks, a 5,000 PSI greasing gun would provide you with optimal performances. 

2. Grease Gun Types

Cordless grease guns are available in three types. These include hand operated, air operated and battery powered. All these have their own sets of advantages and suit various applications. The types that you choose should meet your style, application and budget.

a) Hand operated

These types are also called pump, traditional or manual grease guns. To operate them, you have to squeeze a handle so that enough air pressure is generated to push out the lubricant through the nozzle. The Piston grip guns always fall into this category.

If you want versatile tools and you have the willpower of squeezing the grease out, then this could be your choice. 

b) Air/pneumatic grease guns

Instead of squeezing the grease out manually, these types use air pressure from a compressor to force the lubricant out through the nozzle. To use these, you would have to own a compressor too and contend with the loud noise produced.

c) Battery powered

If cords are a hindrance to your job, then ditch them for the battery-powered grease guns. And when the power from the battery runs out, you simply plug it into recharge and continue with your job.

Their portability is one of the most enduring features of these types of grease guns. You would be able to use it anywhere you want. 

3. Battery life

For the battery-powered grease guns, battery life is an essential consideration that you will have to make. The best cordless grease gun should have a considerably longer battery life. When you are working in a remote place without a power outlet, you should not be inconvenienced.

A longer battery life is also useful when you need to work without interruptions. Having to stop working to recharge is not what a DIY enthusiast always wants. If the battery can last you through several projects, the better for you.

The battery should also have the capacity to deliver a consistent performance even when running low. You would not want the performance to reduce when running low on power. Better still, there should be an indicator that shows how much power is still stored. 

4. Grease gun fittings

If you want to bring the best out of your greasing work, you need to ensure that the gun has the proper fitting. These fittings also allow you to get access to other equipment. In some quarters, these are referred to as nipples, alemite fittings or Zerk fittings. They are available in a number of options namely:

  • Standard hydraulic fittings: These can be angled or in an upright position
  • Button head fittings: Applies a decent amount of grease to the connectors
  • Flush fitting: Their short height is ideal for usages in tight spaces
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    Pressure Relief vent: These are meant to prevent the seals from damage when high pressure is applied

5. Grease gun adapters, Connectors and couplers

Most of the grease guns that you can find around have a standard adaptor. The most common is the hydraulic coupler. However, there are several others that you can choose from.

  • 90-degree adapter: This particular one can be bent through 900C, making it ideal for applications in areas that the standard one does not reach.
  • Needle end adapter: This adapter resembles the normal needle, and is used for high precision and hard to reach greasing jobs.
  • 3-jaw swivel coupler: This comes with a number of locking positions so that you can perform various jobs.

6. Grease meter

How do you know that you have applied the right amount of grease to a bearing? In most cases, you don’t, and this creates a problem. Applying less grease shortens the joint and bearing life while too much leads to wastages.

The best cordless grease guns come with a meter for monitoring how much grease has been squeezed out for a more economical application. It could be digital or analog, but it helps you apply the right amount of grease recommended by manufacturers. 

7. Grease loading mechanism

Every grease gun has its own way of being loaded with grease. Refreshing the grease supply is not an easy task. Therefore you need a gun with an easier method. The most common methods include suction, bulk re-fill or suction fill.

The choice that you make depends on your gun preferences and how you are comfortable using any of them.

8. Accessories

Apart from these features, the best cordless grease guns also have other features to make using them a lot easier. It could be a comfortable handle, an LED light for use in dim areas or color corded gun caps to avoid contamination of various grease lubricants.

There are certain types of guns that you can vary the speed at which the grease is dispensed. This is useful when you are performing different jobs needing different amounts of grease. 

A Review of Five of The Best Cordless Grease Gun Available on The Market 2017

Overview

The CarBole Grease Gun is ideal too for agricultural, automotive, trailers, marine and industrial uses. If your job involves any of these areas, then you could find this grease gun quite useful.

This grease gun produces a maximum pressure of about 10,000 PSI, of which 6,000 PSI is usable as the working pressure. This pressure produced should be sufficient enough to perform most of your greasing and lubrication jobs. 

The barrel of this tool is made of anodized aluminum so that it is rust free. The presence of rust in the barrel greatly reduces the efficiency of the tool. You, therefore, have to use greater efforts to squeeze out the lubricant. 

Via Amazon.com

To withstand the immense pressure generated by the lubricant, an aluminum head that is die-casted is fitted with the gun to withstand the pressure. This aluminum head and barrel greatly reduce the overall weight of the grease gun. Less weight means less strain on you as the user.

For ease and flexibility of use, a 12-inch heavy duty flexible hose that has been triple reinforced is included in the package. With such a strong built, the hose cannot burst even when under pressure. Besides the hose, there is also a 5 3/8-inch grease pipe plus a coupler. 

And since you will be using your hand to operate this grease gun, it is fitted with a heavy-duty aluminum pistol grip. Consequently, this makes one-handed operation a lot easier, just as the pistol handles the constant squeezing. 

Top features

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    Lightweight aluminum barrel
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    Compact build
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    Working pressure of 6,000 PSI
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    10,000 PSI maximum pressure
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    Comfortable pistol lever
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    Rubberized barrel sleeve for better grip
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    Durable flex hose
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    Steel coupler included
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    Anodized barrel
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    Pistol grip style
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    One handed operation
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    Weighs 2.57 pounds
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    The package measures 15 x 5.9 x 2.6 inches
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    Cartridge refilling system

Pros

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    Lightweight
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    Well built
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    Good value for your money
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    Easy to use
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    High quality
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    Easy to load the lubricant
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    Comfortable grip
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    Works great

Cons

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    The plunger is troublesome
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    Hard to prime
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    Tends to leak grease at times

Overview

The Lincoln Grease Gun is a pneumatic grease gun meant to tackle your industrial lubrication needs. This grease gun is fitted with an automatic variable speed trigger that varies the lubrication speeds. With such a feature, you can apply grease to most lubrication points.

An advanced pumping system provides a priming free grease gun operation. This feature, when combined with the variable trigger, gives an excellent control of the grease flow. 

A pumping ratio of 150 pounds per square inch (PSI) provides an efficient use of the air pressure applied. This, in turn, generates a maximum pressure of 6,000 PSI. This kind of grease pressure is enough to lubricate a lot of your DIY needs.

Via Amazon.com

To produce this amount of pressure, an air pressure ranging from between 40 and 150 PSI is needed to run it. As it squeezes out the grease, a 30 inches long grease hose transfers to the lubrication point.

This high-pressure hose can comfortably handle the immense amount of pressure generated. The hose works with an attachment clip and a coupler for better operation ability. In addition, a check valve assembly is incorporated in the design to facilitate a superior grease flow.

Top features

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    Weighs 5.4 pounds
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    Variable speed trigger
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    Maximum pressure of 6,000 PSI
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    Air pressure of 40-150 PSI
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    Air operated grease gun
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    A pump ratio of 150 PSI
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    30”High-pressure hose
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    Fully automatic
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    17” tool length
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    14 ½ ounces cartridge capacity
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    Steel construction
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    Suction, cartridge or bulk loading system
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    40:1 pressure ratio

Pros

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    Rust-free barrel
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    Automatic feeding
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    Variable speed setting
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    Handles well lots of greasing
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    Easy to load
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    Powerful performance
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    Heavy duty
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    Durable 

Cons

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    Some tend to stop pumping grease after using for a while
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    Its grease coupling is a bit lousy

The Dewalt 20-volt grease gun is a battery-powered grease gun, being powered by a 20 Volt MAX Lithium-ion battery. This powerful battery then drives the gun’s powerful motor to deliver about 10,000 PSI of power.

With this amount of power, clogged fittings are no longer a challenge to grease. These clogged fittings provide a particular nightmare for DIY enthusiasts like you. I hate greasing those and I guess you do too.
To accommodate the power delivered by the motor, a high-volume pump capable of squeezing about 5.0 ounces of grease per minute is fitted on to the gun.

Additionally, a single charge of the 4.0 Ah DEWALT battery is enough to power you through 16 cartridge changes. With this amount of runtime, you should be able to perform all your tasks uninterrupted for a long while. 

All these features make this grease gun suitable for high flow grease applications. As a professional, these are the kind of features that you would find useful in the course of your work.

Another feature you will find useful is the variable speed trigger. You might find a job that requires less power to grease, while the next one would need a greater amount of grease. With a variable trigger, all these tasks will be completed with ease without changing grease guns.

Less grease is therefore wasted in the process with such precise controls. This grease is then channeled through a 42” long flexible high-pressure hose. This hose enables you to reach those hard to reach fittings that are to be greased. 

To further assist you in completing your greasing jobs in hard to reach and poorly lit places, this tool comes with an LED light. Locating grease fittings in low light conditions should not be a problem anymore. 

This grease gun also features a filter screen within its pumping system. This allows for the filtration of dirt that would otherwise contaminate and clog the pumping mechanism. An interruption-free operation is therefore guaranteed.

There is another unique feature included in the designing of this grease gun. That is the no-mar foot design. With this feature, it is possible to have the tool rest on any flat surface. An air bleeder is incorporated to aid in the priming of the pump after a cartridge change. 

Top features

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    LED light
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    A variable speed trigger
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    42” long flexible hose
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    It has a filter screen for the pump
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    An air bleeder is incorporated
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    10,000 PSI
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    A grease flow rate of 5.0 Oz./min
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    No-mar foot design
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    Weighs 15.45 pounds
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    16 Ounces bulk capacity
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    Battery powered
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    14.5 ounces cartridge capacity
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    Has a shoulder strap

Pros

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    Variable speed trigger
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    Clog-free pump mechanism
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    Faster greasing
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    Locking tip minimizes grease wastages
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    Works great
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    Works great in tight places
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    Easy to use
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    Delivers a lot of power
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    Versatile

Cons

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    Reported grease spills from the bottom when refilling
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    Some breaks down after a period

Overview

The Lincoln Grease Kit is a combination of a cordless grease gun, 2 batteries and a fast charger for a high-pressure greasing job. In return, this tool delivers a performance 5 times that of other manual guns.

The grease gun included in the kit is capable of generating up to about 6,000 PSI pressure for performing your greasing jobs. This pressure, in turn, enables a continuous operating flow rate of 2.6 Ounces per minute.

With the trickiness that comes with the loading of a new tube of grease, operating this grease gun is made easier with the enabling of a 3-way loading system of the gun. No more fumbling with the loading of a new set of grease.

The 12 volts NiCad rechargeable battery is powerful enough to run the gun through 3 grease tubes on a single charge. With such a prolonged battery runtime, recharging is minimized, meaning that you will finish your projects within the scheduled time, and then move to the next.

A flexible grease gun of 30 inches is provided to enable you to reach those hard to reach spots. In this way, you will leave no fitting ungreased. A three-way loading mechanism is provided too to make your refills a lot easier.

For the safety of the motor, a pressure relief valve is fitted in the grease gun design to prevent any possible damage to the motor. This normally occurs when there is excess pressure buildup in the gun.

Top features

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    12-volt NiCad rechargeable batteries
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    110 volts fast charger
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    30-inch flex hose
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    Machined & hardened piston
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    12-volts motor
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    Planetary gear drive system
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    2-inch drive needle bearing
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    Pressure relief valve
  • 14 ounces grease reservoir
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    Comfortable grips
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    6,000 PSI operating pressure

Pros

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    Recharges in less than an hour
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    Versatile
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    A single charge runs 3 plus grease tubes
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    Durable
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    Works great
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    Good value for the price
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    High quality

Cons

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    The battery life is a worry

Overview

The Lumax Grease Gun is a pistol grip grease gun meant for the heavy-duty stuff. This particular tool comes with an 18 inches long flexible grease hose. Such a length is appropriate for the difficult to reach grease fittings. Better still, this grip features a chrome material plated to provide the maximum level of protection from corrosion. And because it is contoured, a strong grip is generated.

The tool’s barrel is made from a heavy-duty gauge steel. This barrel can survive lots of the drops that will be taking place as you use it. Additionally, a follower spring (heavy duty) is incorporated into the design to provide a consistent priming each time.

For easy refilling, there is a Posi-lock follower rod that has been ergonomically designed to include a T-handle for a sure grip. With this type of handle, you can refill the barrel at any position. After filling, a heavy-duty follower provides maximum sealing for eliminating any grease bypass. 

Every 100 strokes of the grease gun, 115 grams (4 ounces) of grease is dispensed from the nozzle. All these are channeled through the 18 inches of an extension pipe. There are also 4 hardened hydraulic coupler jaws and a non-drip cap.

While using this grease gun, don’t hold the hose. By being able to be loaded in three different ways (suction, grease pump and cartridge), your work is made easier. Up to 7,000 PSI of pressure develops at the heavy-duty cast gun head. Additionally, an air bleeder vents out air pockets in the grease.

Top features

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    Follower rod for preventing accidental discharge
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    18-gauge steel barrel
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    7,000 PSI maximum pressure
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    Three-way loading
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    Air Bleeder
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    Weighs 2.5 pounds
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    Non-drip cap
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    18” flexible hose
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    Hydraulic Coupler
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    4 ounces of grease in 100 strokes
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    Filler nipple & ball check
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    Contour grip

Pros

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    Heavy duty construction
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    Works great
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    Durable
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    Easy to use
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    Versatile in refilling
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    Does not leak

Cons

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    Some have experienced difficulty in loading cartridge
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    Certain tools leak

Conclusion

Keeping your bearings and ball joints well-greased is the key to their long life. This task used to be a difficult one for most people back in the days but not these days with the inception of the best cordless grease guns. These guns make greasing less labor intensive and are done faster. 

There are lots of cordless guns out there, with some delivering better performances than the others. In this review, the DEWALT Grease Gun is my favorite. I personally own this grease gun and use it for my various DIY greasing jobs. 

This gun delivers about 10,000 PSI pressure with a volume flow rate of 5.0 Oz./min. Better still, there is a screen for filtering out debris, and an LED light for working in poorly lit conditions.

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