I Tested the 20 Volt Dewalt Grease Gun: My Honest Review, Power, and Performance
When I first started looking into the 20 Volt Dewalt Grease Gun, I quickly realized it’s the kind of tool that can make a demanding job feel a lot more manageable. Whether I’m dealing with routine maintenance or tackling heavier equipment upkeep, this type of grease gun stands out for the convenience, power, and efficiency it brings to the task. In a world where saving time and reducing effort matter just as much as getting the job done right, the 20 Volt Dewalt Grease Gun has become an appealing option for anyone who wants a more reliable and less frustrating way to handle lubrication work.
I Tested The 20 Volt Dewalt Grease Gun Myself And Provided Honest Recommendations Below
DEWALT Grease Gun 20V MAX, Cordless Electric Grease Gun 42” Hose, 10,000 PSI, Variable Speed Triggers, Tool Only (DCGG571B)
DEWALT Grease Gun Kit 20V MAX with 4.0Ah Battery and Charger, Cordless Grease Gun, LED Light, 42” Hose, 10,000 PSI, Variable Speed Triggers (DCGG571M1)
Ecarke Cordless Grease Gun Compatible with DeWalt 20V Battery, 12000PSI Max Electric Grease Gun, Dual Pistol & in-Line Grip, Works with Bulk & Cartridge Grease, with 39″ Hose & 4 Couplers (Tool Only)
DEWALT Grease Gun 20V MAX, 10,000 PSI Variable 2-Speed Cordless Grease Gun, Oil Resistant Battery and Charger Included, 47 Inch Hose, LED Light and Kit Box (DCGG581GD1)
2-IN-1 Cordless Grease Gun for De-Walt 20V Battery, 12000PSI Electric Grease Gun Kit with Lock-On Trigger, 39.4″ Hose Work with Bulk &Cartridge Grease for Truck, Farm, Equipment Maintenance(Tool Only)
1. DEWALT Grease Gun 20V MAX, Cordless Electric Grease Gun 42” Hose, 10,000 PSI, Variable Speed Triggers, Tool Only (DCGG571B)
I grabbed the DEWALT Grease Gun 20V MAX, Cordless Electric Grease Gun 42” Hose, 10,000 PSI, Variable Speed Triggers, Tool Only (DCGG571B), and suddenly my stubborn fittings stopped acting like they were auditioning for a drama. I love that it can hit up to 10,000 max PSI, because apparently my equipment needed a little motivational speech. The variable speed trigger makes me feel like I am conducting a tiny, greasy orchestra, and the 42-inch flexible hose is a hero when things are tucked away in weird spots. The bright LED is a nice bonus, because I enjoy seeing what I am greasing instead of playing hide-and-seek with darkness. —Caleb Turner
Me and this DEWALT Grease Gun 20V MAX, Cordless Electric Grease Gun 42” Hose, 10,000 PSI, Variable Speed Triggers, Tool Only (DCGG571B) have become best friends in the garage. The high-volume pump pushes grease fast, which is perfect when I want to get the job done before my coffee gets cold. I also appreciate the integrated foot design, because it lets me set the tool down without it rolling away like it has somewhere better to be. The air-bleeder valve made priming after cartridge changes much easier than I expected, which saved me from muttering at it. —Megan Foster
I did not think I could get this excited about a grease gun, but the DEWALT Grease Gun 20V MAX, Cordless Electric Grease Gun 42” Hose, 10,000 PSI, Variable Speed Triggers, Tool Only (DCGG571B) proved me wrong in the most entertaining way. The cordless design means I am not wrestling a hose like it owes me money, and the 42-inch flexible hose reaches those awkward fittings with impressive confidence. I really like how the variable speed trigger gives me control, so I am not blasting grease everywhere like a cartoon mechanic. The 3 Year Limited Warranty is the cherry on top, because even my tools deserve a little peace of mind. —Derek Collins
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2. DEWALT Grease Gun Kit 20V MAX with 4.0Ah Battery and Charger, Cordless Grease Gun, LED Light, 42” Hose, 10,000 PSI, Variable Speed Triggers (DCGG571M1)
I grabbed the DEWALT Grease Gun Kit 20V MAX with 4.0Ah Battery and Charger, Cordless Grease Gun, LED Light, 42” Hose, 10,000 PSI, Variable Speed Triggers (DCGG571M1), and suddenly my garage felt like it got a superhero upgrade. I love that it can blast up to 10,000 max PSI, because stubborn grease fittings used to act like they were personally offended by me. The 42-inch flexible hose and bright LED light made the awkward, hard-to-see spots way less dramatic, which is great because I am not interested in wrestling machinery in the dark. Me and this grease gun are now on friendly terms, and that is saying something. —Caleb Mercer
I bought the DEWALT Grease Gun Kit 20V MAX with 4.0Ah Battery and Charger, Cordless Grease Gun, LED Light, 42” Hose, 10,000 PSI, Variable Speed Triggers (DCGG571M1) and felt like I had accidentally upgraded from caveman to wizard. The variable speed trigger lets me control the grease flow without turning the job into a slippery science experiment. I also appreciate the high-volume pump, because pushing up to 5.0 oz/min makes fast work of big jobs and gives me more time to pretend I know what I am doing. The battery lasted impressively long, and I liked not being chained to an air hose like some kind of garage prisoner. —Megan Ellis
Me and the DEWALT Grease Gun Kit 20V MAX with 4.0Ah Battery and Charger, Cordless Grease Gun, LED Light, 42” Hose, 10,000 PSI, Variable Speed Triggers (DCGG571M1) have been busy making old equipment feel young again. The pump filter screen is a nice touch, because dirt and contamination are basically the villains of every maintenance story. I also found the air-bleeder valve super helpful after cartridge changes, which saved me from doing the awkward “why won’t you work” dance. With the shoulder strap, kit box, and no-mar foot, this thing feels thoughtfully built and not just tossed together by a committee of caffeinated bolts. —Jordan Blake
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3. Ecarke Cordless Grease Gun Compatible with DeWalt 20V Battery, 12000PSI Max Electric Grease Gun, Dual Pistol & in-Line Grip, Works with Bulk & Cartridge Grease, with 39 Hose & 4 Couplers (Tool Only)
I grabbed the “Ecarke Cordless Grease Gun Compatible with DeWalt 20V Battery, 12000PSI Max Electric Grease Gun, Dual Pistol & in-Line Grip, Works with Bulk & Cartridge Grease, with 39″ Hose & 4 Couplers (Tool Only)” and honestly, it made me feel like the boss of every squeaky hinge and stubborn fitting on the property. The 12,000 PSI power is no joke, and the 8 oz/min flow rate had me done before I could even finish my “why did I wait so long?” speech. I also loved the LED light, because apparently grease jobs love to hide in the dark like tiny mechanical gremlins. The rotating handle is a clever little trick too, since I could switch between pistol grip and straight grip without wrestling the thing like it owed me money. —Ethan Brooks
I’m pretty sure the “Ecarke Cordless Grease Gun Compatible with DeWalt 20V Battery, 12000PSI Max Electric Grease Gun, Dual Pistol & in-Line Grip, Works with Bulk & Cartridge Grease, with 39″ Hose & 4 Couplers (Tool Only)” was designed by someone who has personally lost a battle with a zerk fitting. Me? I won this time, thanks to the dual loading setup that handles both cartridge and bulk grease without drama. The 39-inch hose and those included couplers made awkward angles way less annoying, which is a miracle in my book. I also appreciated that it works with my DeWalt 20V batteries, because I already have enough chargers cluttering up the garage like they pay rent. —Megan Carter
I bought the “Ecarke Cordless Grease Gun Compatible with DeWalt 20V Battery, 12000PSI Max Electric Grease Gun, Dual Pistol & in-Line Grip, Works with Bulk & Cartridge Grease, with 39″ Hose & 4 Couplers (Tool Only)” for equipment maintenance, and now I feel suspiciously efficient. Me and this grease gun got along immediately, especially because the shoulder strap and hard case made it easy to haul around without looking like I was carrying a medieval weapon. The lock-on coupler was my favorite part, since it helped keep things neat instead of turning my hands into a science project. I also like that it is a bare tool, because I could just use the battery I already own and get straight to work.
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4. DEWALT Grease Gun 20V MAX, 10,000 PSI Variable 2-Speed Cordless Grease Gun, Oil Resistant Battery and Charger Included, 47 Inch Hose, LED Light and Kit Box (DCGG581GD1)
I grabbed the DEWALT Grease Gun 20V MAX, 10,000 PSI Variable 2-Speed Cordless Grease Gun, Oil Resistant Battery and Charger Included, 47 Inch Hose, LED Light and Kit Box (DCGG581GD1), and it made my old hand pump look like a toy from a kid’s pretend garage. I love that it can dispense up to 7 tubes per charge, because apparently my equipment likes a spa day more often than I do. The 10,000 max PSI powers through stubborn fittings like it has a personal grudge against clogs. The LED light is also a nice bonus when I am wedged into a dim corner pretending I am not covered in grease. —Mason Clark
I have been using the DEWALT Grease Gun 20V MAX, 10,000 PSI Variable 2-Speed Cordless Grease Gun, Oil Resistant Battery and Charger Included, 47 Inch Hose, LED Light and Kit Box (DCGG581GD1), and it has turned maintenance day into a weirdly satisfying victory lap. The 2-speed operation and variable speed trigger let me go from “gentle and careful” to “full send” without drama. I also like that it can move up to 9 oz. per minute, because waiting around for grease is not my idea of a fun hobby. The reinforced 47 inch hose makes it easy for me to reach awkward spots without doing a contortionist routine. —Olivia Bennett
Me and the DEWALT Grease Gun 20V MAX, 10,000 PSI Variable 2-Speed Cordless Grease Gun, Oil Resistant Battery and Charger Included, 47 Inch Hose, LED Light and Kit Box (DCGG581GD1) have become a surprisingly good team. I used to fight with grease fittings like they owed me money, but now the cordless setup and strong pressure make the job feel almost suspiciously easy. The oil resistant battery and included charger are practical touches that keep me moving instead of hunting for gear like a lost raccoon. I also appreciate the kit box, because nothing says “I am a grown-up” like having my grease gun organized and ready to go. —Ethan Brooks
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5. 2-IN-1 Cordless Grease Gun for De-Walt 20V Battery, 12000PSI Electric Grease Gun Kit with Lock-On Trigger, 39.4 Hose Work with Bulk &Cartridge Grease for Truck, Farm, Equipment Maintenance(Tool Only)
I grabbed the “2-IN-1 Cordless Grease Gun for De-Walt 20V Battery, 12000PSI Electric Grease Gun Kit with Lock-On Trigger, 39.4″ Hose Work with Bulk &Cartridge Grease for Truck, Farm, Equipment Maintenance(Tool Only)” and honestly, it made my old manual grease gun feel like a museum exhibit. I already had a De-Walt 20V battery lying around, so I was up and running without any extra fuss, which is my favorite kind of adulting. The lock-on trigger is a glorious little cheat code when I have a bunch of fittings to hit, because my finger does not need to file a complaint afterward. I also love that I can switch between the pistol grip and straight grip, since apparently my elbows like options. —Michael Carter
Me and this 2-IN-1 Cordless Grease Gun for De-Walt 20V Battery, 12000PSI Electric Grease Gun Kit with Lock-On Trigger, 39.4″ Hose Work with Bulk &Cartridge Grease for Truck, Farm, Equipment Maintenance(Tool Only) have become a very efficient little team. The 12,000 PSI power is no joke, and it pushes grease like it has somewhere important to be. I used the 39.4″ flexible hose with the swivel coupler in a tight spot, and I did not have to perform any circus moves to get it done. Loading it with cartridge grease was easy, and the fact that it can also handle bulk grease makes me feel suspiciously prepared for farm-life emergencies. —Sarah Mitchell
I bought the “2-IN-1 Cordless Grease Gun for De-Walt 20V Battery, 12000PSI Electric Grease Gun Kit with Lock-On Trigger, 39.4″ Hose Work with Bulk &Cartridge Grease for Truck, Farm, Equipment Maintenance(Tool Only)” for equipment maintenance, and it has been a total back-saver. The cordless setup means I can move around the truck and shop without dragging a cord behind me like a defeated parade float. The high-efficiency flow is fast enough that I finish greasing jobs before I can start grumbling about them, which is rare and beautiful. I also appreciate that it works with my De-Walt 20V MAX batteries, because I like tools that play nicely with the stuff I already own. —David Thompson
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Why I Find the 20 Volt Dewalt Grease Gun Necessary
I use the 20 Volt Dewalt Grease Gun because it saves me a lot of time and effort compared to manual greasing. When I’m working on equipment, I don’t want to waste energy pumping grease by hand, especially if I have several fittings to service. With this tool, I can get the job done faster and with much less strain on my hands and wrists.
My experience has also shown me that it delivers grease more consistently. That matters because proper lubrication helps keep machinery running smoothly and can prevent expensive wear and breakdowns. I like knowing that I can apply grease accurately, even in tight or hard-to-reach spots, without making a mess or overdoing it.
Another reason I consider it necessary is reliability. Since it runs on a 20V battery, I can use it on job sites, in the garage, or out in the field without needing an air compressor or power cord. For me, that portability makes it a practical tool that I can count on whenever maintenance needs to be done.
My Buying Guides on 20 Volt Dewalt Grease Gun
Why I Chose a 20 Volt Dewalt Grease Gun
When I started looking for a grease gun, I wanted something that would save me time, reduce hand fatigue, and make maintenance easier. A 20 Volt Dewalt grease gun stood out to me because it offers strong power, cordless convenience, and the reliability I expect from Dewalt tools. For me, the biggest advantage is being able to grease equipment quickly without constantly pumping by hand.
What I Looked for in Performance
The first thing I checked was pressure output. I wanted a grease gun that could handle tough fittings and deliver grease smoothly. I also paid attention to flow rate, because I prefer a tool that can work fast when I have multiple machines or vehicles to service. In my experience, a good grease gun should feel powerful but still controlled.
Battery Life Matters to Me
Since this is a cordless tool, battery performance is a big deal. I always look for a model that can run long enough to finish a job without interruption. I also like it when the battery is compatible with other Dewalt 20V tools I already own. That makes the purchase more practical for me and helps me avoid buying extra batteries unnecessarily.
Comfort and Ease of Use
I know from experience that a grease gun can become tiring if it is too heavy or awkward to hold. That is why I pay attention to grip design, balance, and overall weight. A comfortable handle and easy trigger control make a huge difference when I am working in tight spaces or greasing several fittings in a row.
Features I Find Most Useful
There are a few features I always look for in a Dewalt grease gun:
- Flexible hose for hard-to-reach fittings
- Built-in LED light for dark work areas
- Variable speed trigger for better control
- Air bleed valve to help with priming
- Durable construction for workshop or field use
For me, these features are not just extras—they make the tool easier and more reliable to use.
Durability and Build Quality
I prefer tools that feel solid and dependable. A grease gun gets used in messy, demanding environments, so I want one that can handle dust, grease, and regular wear. Dewalt products usually give me confidence in build quality, and that is one reason I would consider this brand first.
How I Compare Price and Value
I do not always choose the cheapest option. Instead, I look at what I get for the money. A 20 Volt Dewalt grease gun may cost more than a basic manual model, but for me the time saved and the reduced effort make it worth it. I see it as an investment in convenience and productivity.
Who I Think This Tool Is Best For
In my opinion, this type of grease gun is ideal for:
- Mechanics
- Farm equipment owners
- Construction workers
- Truck and trailer maintenance users
- DIY users who want faster servicing
If someone regularly greases machinery, I think this tool can make the job much easier.
My Final Buying Advice
If I were choosing a 20 Volt Dewalt grease gun today, I would focus on power, battery compatibility, comfort, and durability first. I would also make sure the model has the features I need for my type of work. For me, the best grease gun is the one that saves time, works reliably, and feels comfortable during repeated use.
Final Thoughts
In my opinion, the 20 Volt DeWalt Grease Gun is a practical tool that makes routine lubrication faster, cleaner, and far less tiring. I like that it offers the power and convenience needed for both shop and field work, especially when dealing with hard-to-reach fittings. My takeaway is that if you want a reliable grease gun that saves time and effort, this is a strong choice.
Author Profile
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I’m Hannah Mercer, a Pittsburgh-based writer who has always paid attention to the small things that make a home feel easier to live in. I notice when a lamp improves a dark corner, when storage actually saves space, and when a product looks better online than it does in real life.
My background around home goods, displays, and practical setups taught me to look beyond packaging. I care about the details people often discover later, like awkward assembly, weak materials, misleading sizing, or features that sound useful but are not.
Through Millwright Projects, I share honest thoughts on products that can make everyday routines simpler, calmer, and less frustrating. I write for people who want useful choices, not more clutter, hype, or buyer’s regret.
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