Best Grease Gun- Dewalt Cordless and Milwaukee Among Others


The knowledge that moving parts create friction is a scientific principle most of us are familiar with. This, however, goes double for mechanical engineers, maintenance and service specialists, handymen, and every other DIYer out there.

To make equipment and machines such as impact drivers last longer and work without noise due to wearing and tearing, these moving parts need to be lubricated. For this reason, you will need a grease gun to access these areas and grease them accordingly.

These devices work with a pressure mechanism that expels out the grease/lubricant. Your device’s performance will be affected by the capabilities inherent to the various ways of powering grease guns.

What you expect in terms of power and usability from the different grease gun models will be affected by both the type and the model you devise to invest in.

These tools are available in the thousands. Your decision to choose one over the other will require you to assess serious considerations and conduct extensive research. We have done your grunt work for you and have identified the best grease gun from the lot that will offer you the level of performance you sorely need.

Best Grease Gun Reviews 2021

Image Product Price
Editor’s Pick

Lumax LX-1152 Black Heavy Duty Deluxe Pistol Grease Gun

Lumax LX-1152 Black Heavy Duty Deluxe Pistol Grease Gun

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Best Value
DEWALT 20V MAX Cordless Grease Gun

DEWALT 20V MAX Cordless Grease Gun

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UTOOL Grease Gun

UTOOL Grease Gun

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Milwaukee 2646-20 M18 2-Speed Grease Gun

Milwaukee 2646-20 M18 2-Speed Grease Gun

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Lnchett Grease Gun

Lnchett Grease Gun

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1. Lumax LX-1152 Black Heavy Duty Deluxe Pistol Grease Gun

Lumax LX-1152 Black Heavy Duty Deluxe Pistol Grease Gun

Getting a top-of-the-line grease gun isn’t due to luck as it is a result of proper research, more specifically, into the leading names in the industry, in this case, Lumax. Looking at their LX-1152 Grease Gun model, you can see why they are so revered.

To start everything off, this gun can be loaded using either one of the three filling technologies, that is, using a standard cartridge, bulk, or suction fill. Once loaded, you can use the 18” flexible hose to maneuver the gun to lubricate hard-to-access fittings.

The LX-1152 is no ordinary grease gun; it is a heavy-duty tool and thus can be used comfortably by industrial professionals and service and maintenance technicians.

They can deliver a stream of lubricant at a maximum pressure of 7000 PSI (480 Bar). However, all this power would be nothing if the device’s outer sheath leaves much to desire. It has a sturdy chrome-plated handle to keep away corrosion, while its oil-resistant, contoured grip helps you keep a firm hand even under slippery conditions.


  • The grease gun works perfectly if the instruction guide is followed
  • It comes at an affordable price
  • Comes well packaged
  • It has a variety of way of loading the gun


  • Reported leaking from the tip
  • It gets caught up in the zerk fittings

2. DEWALT 20V MAX Cordless Grease Gun

DEWALT 20V MAX Cordless Grease Gun

The world is continuously making work easier through improved technology. The DEWALT Cordless Grease Gun is proof of this. First of all, it offers cordless operation thanks to its 20 V Max Li-Ion battery that runs the entire setup.

This power is such that it can allow up to 16 cartridges per charge with a single 4.0Ah capable battery. It runs a powerful motor that can deliver a maximum lubricant application pressure of 10,000 PSI via clogged-up grease fittings. When dealing with high-flow applications, this gun’s pump can have grease at a flow rate of 5 ounces per minute.

With such amounts of power, you will need a way to control how it is used; for this reason, the engineers who made the DEWALT Cordless Grease Gun installed a variable speed trigger.

This feature helps one to control the grease stream precisely. This setup also features a 42” long extra-long flexible hose that will help lubrication even in challenging to reach fittings. Everyone likes extra features that aren’t just gimmicks.

This is where there is a fully functional LED light that helps locate grease fittings in shadowy or low-light conditions. Finally, integrating a pump filter screen prevents any dirt or contaminants from clogging the pump system.


  • Priming it is easy
  • A long-lasting battery serves it
  • Loading it is simple
  • It is also relatively easy to clean


  • Almost impossible to replace the factory-made coupler
  • It is pricey

3. UTOOL Grease Gun

UTOOL Grease Gun

The UTOOL Grease Gun stands proudly as one of the most portable and convenient to use grease guns available anywhere. It’s hard not first to notice its comfortable-to-handle ergonomic design. Its pistol grip has been sized and designed such that it is capable of being operated using only one hand.

It has a rubber sleeve for increased adhesion to enable safe use under slippery or sweaty conditions. Talking about convenience, its base is removable to aid mobility, and it also has a short stroke to work tightly packed areas.

Its construction is sturdy and competently done as the head, for instance, is made of die-cast iron. Its sealing technique is impressive as it uses a strengthened O-ring capable of dealing with the high-pressure working conditions without allowing leaking from the tube.

This is crucial as the grease gun can output a maximum pressure of 7000 PSI. Priming the UTOOL Grease gun is as easy as releasing air pockets using the air bleed valve is just the small matter of pushing a button.


  • Easy to use
  • Priming it is also simple
  • It comes sealed tightly
  • Its instructions are easy to follow


  • It has a relatively weak construction
  • The tips are prone to getting stuck

4. Milwaukee 2646-20 M18 2-Speed Grease Gun

Milwaukee 2646-20 M18 2-Speed Grease Gun

The Milwaukee M18 Grease Gun is a marvel when it comes to speed and pressure regulation. This is because it has two speeds of operation: the maximum pressure speed option and the maximum flow rate option.

Its maximum delivery pressure is a big deal as it can deal with a maximum of 10,000 PSI when it comes to lubricant distribution. In as much as this is cool and what we expect from this powerful tool, all this force of operation is nothing without the right amount of finesse. The grease counter that displays the amount of grease dispensed helps with this.

Its delivery system is through a 48” flexible hose that can access hard to reach fittings. Have we also mentioned that this device offers cordless operation? Well, it does.

Not only that, its REDLITHIUM 18 V battery pack is one of the few grease guns in existence whose battery is compatible with a tools system. Its ON/OFF lock mechanism helps you maintain your required state of operation quickly.

It also has an onboard LED light that enables you to access grease fittings in dimly lit environments. Furthermore, it offers user comfort in the form of a shoulder-strap capability and a stand-up configuration.


  • Easy to contact customer care
  • Cleaning it isn’t that hard
  • The trigger can lock at the ON/OFF position for convenient use
  • It has an LED light for viewing in dark areas


  • The barrel is made of low-quality metal
  • Its priming issues affect the volume that’s produced

5. Lnchett Grease Gun

Lnchett Grease Gun

Our last featured grease gun is the stylish Lnchett Grease gun. It comes with an easy-to-clean and easier-to-see black and orange color design.

However, this grease gun isn’t just a pretty face; it is made of strong and robust heavy-duty steel for its steel barrel. It uses an 18” flexible hose to direct lubricant to hidden grease fittings. Although it may look small, this grease gun is a pocket Hercules, as it can deliver up to 7000 PSI of pressure.

This grease gun is of the pistol grip type. Its pistol grip handle has been textured to provide enough leverage for comfortable handling of the gun.

In addition to this, the barrel has a thickened rubbery sleeve around it to increase friction and, thus, grip in slippery circumstances. In addition to the gun, the package comes with an 18” hose, 2 metal extension tubes, 1 sharp type nozzle, and 2 reinforced standard couplers.


  • Comes with easy to follow instructions
  • The grease gun comes well packaged
  • Its price tag is comfortable
  • It is easy to use


  • Gets stuck in the zerk fitting
  • It is not easy to prime this device

Tips For  Choosing The Best Grease Gun: Battery and Electric Powered Guns For Use on Moving Parts- The Ultimate Buying guide


You are going through this article for either one of two reasons. One, you have machinery at home, garage, or workshop that needs some greasing, and you want to get a good debut grease gun. The other reason is you want to replace an outdated model with a new and improved product.

Whatever your reason(s), there are a few things you need to think about to ensure your purchase serves you well. Having your individual considerations and needs in mind will also help you have an easier time picking from the vast array of grease gun brands and models.

How many types of grease guns are out there?

There are several types of grease guns available. Each of them has its style of operation and quirk that will appeal differently to different users.

  1. The lever type

This is perhaps the most popular and most straightforward of the lot. It is also quite versatile, making it ideal for all kinds of projects. They have a lubricant supply rate of 1.28g per bomb. However, it requires both hands to operate; all you need to do is pull the lever, which creates pressure that dispenses the grease. They are suited for light-duty lubrication.

  •  The pump type

It is also known as the traditional, manual, or hand pump. They are powerful and also versatile, but it is not very easy to use. This difficulty is because they need a big hand to operate. In addition to that, they need a lot of hand strength as they use a thick lubricant. They work by generating pressure that expels grease from the gun.

  • The pistol grip

This type is beneficial when it comes to greasing fittings located in cramped and awkward situations. Due to this niche, the pistol grip has been designed for single-hand use if necessary, like a normal gun. As they are small in size, they tend to weigh less than other types of grease guns.

  • Air operated

When it comes to heavy commercial use, the air-operated grease gun is a hard hitter. They are very powerful. This can be attributed to the mechanism through which they pass grease to fittings. The grease gun is connected to an air compressor, which provides pressure for the supplying process. While they are very beneficial in handling complex and large projects, their substantial lubrication capability makes them very dangerous if they are not carefully handled.

  • Cordless

This type is one of the newest additions to the market. The cordless grease gun uses a battery pack to do away with the cord when it comes to input power. This increases their portability and makes them very convenient to use. When you run out of charge, depending on the cordless grease gun model you got, you can either replace the battery pack or simply recharge it.

How do you load your grease gun?



The loading method you choose will solely depend on your individual abilities regarding finances and personal preference. A grease gun can usually be loaded in either one of three possible approaches, that is, by cartridge, suction, or bulk fill. However, you ought to go for a grease gun that doesn’t have a long loading time. It is worth noting that grease is a better lubricant than oil, so it’s imperative to avoid the latter.

  • Cartridge loading

Let us first look at cartridge loading. A grease gun is filled here using one or several packaged grease cartridges. This is the most convenient way of loading, but it costs way more than, for instance, bulk loading. They also have a more significant adverse environmental impact as they are discarded in landfills after use.

Loading it is a matter of following a few simple steps. You will first have to pull back the plunger, making it lock in place. It seals up to reduce the risk of contamination and leakage. After this, remove the plastic cap from the newer grease cartridge and insert it into the gun with the face down.

As soon as you’ve inserted the cartridge, remove the flip lid angling towards the gun’s top. Replace the head of the grease gun. Lastly, release the plunger lock and pump the gun several times t prime it properly. Don’t forget that after loading the grease barrel and attaching it to the gun’s head, you can release trapped air using the air bleeder valve. This makes priming easier.

  • Suction loading

The suction loading’s principle of operation is that it draws grease from a bulk drum full of it. This is done manually by inserting the end of the gun into the lubricant and pulling the handle up. While easy when used with lighter grade grease, it is a nightmare extracting heavy grease this way. This is a cheap but very messy and inexpensive way of loading a grease gun.

  • Bulk loading

Bulk loading is probably the most effective of the three loading methods as it is the easiest to do, cleanest to carry out, and the most cost-effective of the bunch. It, however, requires a couple of components before you can begin filling your gun. It needs the following items: follower plates, bulk filler pumps, bulk loader couples, bulk loader fittings, and air bleeder valves.

You will start by installing a barrel pump onto a pail of grease. On the pump’s loader coupler, press the grease gun’s loader fitting. As the grease is transferred, it is likely some air will find its way into the gun. This entrapped air can be released using the air bleeder valves. Air pockets in the bulk grease can further be minimized using follower plates.

How to use a grease gun

Using a grease gun isn’t rocket science. Be that as it may, mistakes made using the gun could cause injury, so it is always good to know the proper way of using your tool. A perusal of the manufacturer’s safety instructions is also highly recommended. There are two methods we will discuss on how to use a grease gun properly.

1st method

You will first need to remove the grease gun’s head from the barrel. Next, pull the rod handle back and lock it. After this, open the cartridge and insert it into the grease gun’s barrel. Make sure to note the pull tag of the new cartridge’s end. Push the cartridge in, making sure its rim is in contact with that of the grease gun.

To the end cap, reinstall the barrel of the grease gun, ensuring the cap is loose. Then release the gun’s rod handle. You will do this by turning it out from the retaining groove located in the end cap. Force the grease into the grease gun head, forcing the air out by depressing the rod handle.

Through the nozzle, pump some grease and clean it up before connecting the gun and the nozzle. Tighten the cap. To push out the remaining air, push down on the air bleeder. At the end of the hose on the area to be greased, put the gun coupler. Pump the lever for the grease to flow.

2nd method

Remove the head from the barrel. Make sure to load enough grease in the head. Next, insert the gun barrel about 2 inches into the vat of grease. While pulling up the rod handle, push down on the gun’s barrel. When it is completely extended, lock the rod handle.

Swing the barrel sideways to get rid of the excess grease once the barrel is full. Clean off the gun’s parts using a paper towel or rag.

After this, connect the gun barrel to the unit. Release the gun’s rod handle and pump it to begin the flow. Attach the gun coupler to the end of the extension hose straight onto the greasing area.

How much power can your grease gun pack?

We have looked at the various types of grease guns available. What we need to look at next is how much power these types can express.

The grease gun powered by the hand is hands down the most popular type. It can supply 1.28g of grease per bomb.

We have seen that the air-powered grease gun is the most powerful and is used when working with large equipment and heavy machines. They tend to have maximum pressure ratings of up to 6000 PSI.

AC electric or corded grease guns deliver a consistent grease flow with a pressure rating of up to 5000 PSI. Typically, they are used as alternatives to air-powered tools.

Battery-operated types perform their duties in an almost similar fashion to the air-operated types. Their primary characteristics are that they offer a lot of convenience due to being cordless and have low voltages.

They have maximum pressures anywhere between 6000 and 10 000 PSI. This figure is, in part, dependent on who the manufacturer is.

A grease meter is essential. Duh!

A lot of people think that as long as bearings are greased, then everything’s golden. This is not the case as there are dangers to over-greasing and under-greasing.

If you want your machines and equipment to go the distance with you, you will need to supply their fittings with a precise amount of grease. To be able to do this properly, you will need a grease meter. For an easier time, go with a meter that has an easy-to-read display.

Understanding grease fittings and adapters

Grease fittings are known by other names, namely zerk fittings, Allemite fittings, or grease nipples. There are four types.

First, we have the standard hydraulic fittings. These are used for typical operations. The flush type of grease fittings typically comes into play when there is limited operational space. The third type is the button-head fitting.

This type is used when applying a vast amount of grease in between connectors. The last type is the pressure-relief vent fitting that prevents the seals from getting damaged due to the high pressure they’re subjected to.

When it comes to adapters, the standard hydraulic coupler will serve you well for most applications. Another adapter is known as the 90-degree adapter, which works well in restricted conditions where a standard adapter finds it hard to reach.

The needle-end adapter is designed for use when producing precise grease flows, most especially in slender areas. Lastly, the versatile three-jaw swivel coupler can be used in several scenarios.

Flexible hose versus a fixed tube

Whether to use a fixed tube or a flexible hose is a decision that depends heavily on the type of grease gun used, the ease of accessing the fitting’s location, and the machine’s grease fitting. We usually use the flexible hose to access hard-to-reach areas while we use fixed tubes for lever-style grease guns that use both hands for pumping.

Properly maintain your grease gun

So that your grease gun can serve you better for longer, here are a few tips that will add to your device’s lifespan, a couple of months, if not years.

  • Make sure always to wear protective gear such as gloves and safety goggles since the lubricant is under a lot of pressure
  • Use only the amount of lubricant you need for the job as mixing old and new grease is a big no-no
  • While we are still talking about grease, ensure the grease you are using is compatible with the grease gun you have
  • To safeguard your device’s bearings’ health, ensure you install new cartridges carefully to prevent from introducing dust and other contaminants. For instance, when introducing new grease, always make sure the nozzle is clear of old material.
  • Ensure the grease fittings are also clean before connecting the grease gun nozzle
  • Life is a balancing act, and so is the case with couplers, threading, and other connections. Loose connections will be prone to leaking, while over-tightening can cause failure in the flow and pressure system
  • For your safety and that of others, always clean up grease spills to prevent any workshop related accidents
  • After use, store cartridges, grease guns, and grease tubs in a cool and dry place. They should also be oriented vertically and not lying down. Also, try to err on the side of caution by ensuring couplers and nozzles are covered up to reduce the risk of accidental contamination


We have done your homework and listed the best grease guns currently available and listed down the considerations to take seriously and other tips that will help you with making your decision. It is now up to you to look at your needs and what you expect from this tool, create a budget, and use this research to make a financial decision that will bring a smile to your face every single time you use your grease gun.

Frequently Asked Questions (FAQs)

  1. What is a grease gun?

A grease gun is a handy tool that is used to dispense grease and other lubricants to various moving or mechanical parts

  • How to put grease in a grease gun

Loading grease in a grease gun depends on the type of grease gun you have. There are filled using either cartridges, suction, or bulk filling. They have each been discussed in the buying guide section of this article

  • How does a grease gun work?


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