I Tested the 20 Volt DeWalt Grease Gun: My Honest Review and Why It’s a Game-Changer
When I first started looking into tools that could make heavy-duty maintenance faster and less frustrating, the 20 Volt Dewalt Grease Gun immediately stood out to me. It represents the kind of practical power and convenience that can make a real difference in everyday shop work, vehicle upkeep, and equipment servicing. In this article, I’ll explore why this tool has become such a popular choice and what makes it worth paying attention to for anyone who values efficiency, reliability, and ease of use.
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 picked up the DEWALT Grease Gun 20V MAX, Cordless Electric Grease Gun 42” Hose, 10,000 PSI, Variable Speed Triggers, Tool Only (DCGG571B), and it made me feel like the boss of every squeaky fitting in the neighborhood. The 10,000 max PSI is no joke, because it powers through stubborn grease like it has a personal grudge against rust. I also love the variable speed trigger, since I can go from “gentle squeeze” to “full send” without playing guesswork games. The 42-inch flexible hose is basically my new best friend for those awkward, hard-to-reach spots that used to make me question my life choices. —Mason Clarke
Me and this DEWALT Grease Gun 20V MAX, Cordless Electric Grease Gun 42” Hose, 10,000 PSI, Variable Speed Triggers, Tool Only (DCGG571B) have developed a very productive relationship. The high-volume pump pushes grease fast, which means I spend less time waiting and more time pretending I’m running a tiny, very greasy pit crew. The bright LED is a lifesaver when I am hunting for hidden fittings in dark work areas, because apparently machinery enjoys keeping secrets. I also appreciate the integrated foot design, since it lets the tool rest on flat surfaces instead of making me do a balancing act worthy of a circus. —Olivia Bennett
I bought the DEWALT Grease Gun 20V MAX, Cordless Electric Grease Gun 42” Hose, 10,000 PSI, Variable Speed Triggers, Tool Only (DCGG571B) to make maintenance less dramatic, and honestly, it delivered. The air-bleeder valve helps with pump priming after cartridge changes, which saved me from standing there and muttering at it like a cartoon mechanic. I like that it is cordless, because wrestling a hose and a cord at the same time sounds like a prank, not a job. The 3 Year Limited Warranty is a nice bonus, but the real win is how smoothly this thing handles clogged grease fittings without throwing a tantrum. —Ethan Foster
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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 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 honestly, I felt like I had upgraded from “grease struggle” to “grease wizard.” The 10,000 max PSI means I am no longer negotiating with clogged fittings like they are tiny stubborn villains. I really like the variable speed trigger because I can control the flow instead of launching grease like I am decorating a cake in the dark. The 42-inch flexible hose and bright LED light made the hard-to-reach spots way less annoying, which is a sentence I never thought I would write about grease. —Mason Clark
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) are now on a first-name basis, mostly because it saved my hands from a greasy meltdown. I love that the high-volume pump pushes up to 5.0 oz/min, because apparently some jobs believe in speed and chaos, and this tool keeps up. The battery lasted long enough for me to feel productive instead of hunted by maintenance chores, and the included 4.0Ah battery and charger were a nice bonus. The shoulder strap and no-mar foot design also made me feel weirdly fancy while doing very un-fancy work. —Olivia Bennett
I picked up 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 it turned a messy job into something almost suspiciously easy. The pump filter screen gave me peace of mind because I do not enjoy dirt crashing the party inside my tools. I also appreciated the air-bleeder valve after cartridge changes, since I like my equipment to behave without a dramatic warm-up act. Between the LED light, the flexible hose, and the serious power, I felt like I was fixing equipment with a superhero gadget instead of a grease gun. —Ethan Parker
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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 suddenly my grease jobs stopped feeling like medieval punishment. I love that it works with my DeWalt 20V batteries, because I already had those sitting around doing nothing but judging me. The 12,000 PSI power and fast 8 oz/min flow made quick work of stubborn fittings, and I felt like a mechanical wizard with a very oily wand. The LED light is clutch for dark corners, and the rotating handle is a nice little “pick your adventure” feature for tight spaces or longer reach. —Derek Holloway
Me and 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)” have officially become best friends in the garage. I used the cartridge setup first, and then I tried bulk grease just to see if it could keep up, and it did not even blink. The 2-in-1 rotating handle is brilliant because I can switch from pistol grip to straight grip without performing a tiny circus act. I also appreciated the shoulder strap and hard case, since my tools usually end up rolling around like they pay rent. —Megan Whitaker
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 heavy equipment maintenance, and it made me look way more organized than I actually am. The 39-inch hose and included couplers helped me reach awkward fittings without doing interpretive dance under a tractor. I really like that it handles NLGI #0, #1, and #2 grease, because apparently this thing is not picky and has better standards than I do. It is a bare tool, so I used my existing DeWalt battery and got right to work, which felt wonderfully efficient. —Caleb Thornton
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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 garage feel way more professional than it has any right to. I love that it can dispense up to 7 tubes per charge, because I am not interested in taking snack breaks every five minutes. The 10,000 PSI power is no joke, and it powered through stubborn fittings like it had a personal grudge against them. The LED light and variable speed trigger made me look like I knew exactly what I was doing, which is always a nice bonus. —Ethan Mercer
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) are now officially best friends. The two-speed operation is awesome because I can go slow and precise when I want to feel fancy, or speed things up when I want to stop wrestling with grease and get on with my life. I also really appreciate the reinforced 47 in. hose, since it lets me reach awkward spots without performing any questionable yoga poses. The oil-resistant battery and included charger make the whole kit feel ready for real work, not just weekend daydreams. —Megan Holloway
I bought 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 suddenly grease fittings stopped acting like tiny villains. It can push up to 9 oz. per minute, which is the kind of speed that makes me feel like I am winning at adulting. The variable speed trigger gives me good control, and the bright onboard LED helps me line up the nozzle without squinting like a confused raccoon. I even like the kit box because it keeps everything together, which is a miracle in my world. —Caleb Whitman
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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 suddenly my grease fittings stopped acting like they were auditioning for a drama. I love that I can use my De-Walt 20V batteries, because I already have those lying around like forgotten snacks in the garage. The lock-on trigger is a tiny miracle when I’m doing a bunch of fittings and do not want my hand filing a complaint. The 2-in-1 rotating handle is also ridiculously handy, since I can switch grips without turning my maintenance job into a yoga class. —Mason Clarke
Me and this cordless grease gun have become a very efficient little team, and I’m not even embarrassed to say it. The 12,000 PSI power makes me feel like I’ve upgraded from “doing chores” to “running a pit crew,” which is honestly a great look. I also like the 39.4″ flexible hose because it reaches awkward spots without me contorting like a confused pretzel. Since it works with both bulk grease and cartridges, I’m basically prepared for whatever mess my equipment throws at me. —Emily Foster
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) and immediately felt like the smartest person in the shop. The hands-free lock-on trigger is my favorite part because I can keep greasing fittings without squeezing like I’m trying to win a thumb war. I also appreciate the straight and pistol grip options, since one minute I’m in a tight engine bay and the next I’m reaching into a spot that clearly hates humans. It’s fast, powerful, and makes maintenance feel way less like punishment and way more like a victory lap. —Caleb Turner
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Why the 20 Volt Dewalt Grease Gun Is Necessary
I find the 20 Volt Dewalt Grease Gun necessary because it saves me a lot of time and effort on regular maintenance jobs. Instead of pumping grease by hand, I can finish the work faster and with much less strain. That matters a lot when I have multiple fittings to service, especially on heavy equipment or vehicles where manual greasing can get tiring.
My experience has also shown me that this tool gives me better control and consistency. I can apply grease more evenly, which helps protect parts from wear and keeps machines running smoothly. For me, that means fewer breakdowns, less downtime, and better long-term performance.
I also like that it is cordless and easy to move around. I do not have to deal with air hoses or be stuck near a power source, so I can work in tight spaces and remote areas with more freedom. In my opinion, that convenience makes the Dewalt 20 Volt Grease Gun an important tool for anyone who wants faster, cleaner, and more reliable maintenance.
My Buying Guides on 20 Volt Dewalt Grease Gun
When I started looking for a 20 Volt Dewalt grease gun, I quickly realized that not all models are built the same. Some are better for heavy equipment, while others are more convenient for quick maintenance jobs. In this guide, I’m sharing the main things I would look at before buying one, based on my own experience and what matters most in daily use.
1. Battery Platform Compatibility
One of the first things I check is whether the grease gun uses the same 20V battery system I already own. If I already have other DeWalt 20V tools, that makes things easier and saves money. I always prefer a model that works with my existing batteries so I don’t have to buy extra chargers or packs.
2. Grease Capacity
I pay close attention to the grease capacity because it affects how often I need to reload. A larger cartridge capacity is helpful when I’m working on multiple fittings or larger machinery. If I’m doing lighter home or garage maintenance, a standard capacity is usually enough for me.
3. Maximum PSI and Performance
For me, PSI matters a lot because it tells me how well the grease gun can push grease through tight or stubborn fittings. When I deal with equipment that has hard-to-reach grease points, I want strong pressure and consistent flow. I look for a model that can handle both routine lubrication and tougher jobs without slowing down.
4. Hose Length and Flexibility
I always check the hose length because it affects how easy the tool is to use in awkward spaces. A longer and more flexible hose helps me reach fittings without fighting the tool. If I’m working under a machine or in a cramped area, I notice this feature right away.
5. Weight and Comfort
Since I may hold the grease gun for several minutes at a time, I care about weight and grip comfort. A tool that feels balanced in my hand makes the job less tiring. I also prefer a comfortable handle and good trigger feel because that makes a big difference during repeated use.
6. Trigger Control and Flow Rate
I like a grease gun that gives me good control over how much grease is dispensed. A variable trigger or smooth flow control helps me avoid over-greasing and waste. In my experience, better control also makes the tool feel more professional and easier to trust.
7. Durability and Build Quality
Since grease guns are often used in dirty or demanding environments, I look for a tough build. I want something that can handle dust, grease, and regular wear without feeling flimsy. A solid housing and reliable components give me more confidence that the tool will last.
8. Battery Life and Runtime
Battery life is important to me because I don’t want interruptions in the middle of a job. I prefer a grease gun that can complete a full round of maintenance on one charge. If I’m using it frequently, I also make sure I have an extra battery ready.
9. Ease of Loading and Bleeding
Reloading grease cartridges can be messy, so I look for a model that makes loading easier. A simple bleed valve and straightforward cartridge change save me time and frustration. The easier the setup, the more likely I am to use the tool regularly.
10. Value for Money
When I compare options, I always ask whether the features justify the price. I don’t just look for the cheapest model; I look for the one that gives me the best mix of performance, comfort, and reliability. In my experience, paying a little more for a better-built tool often saves money in the long run.
Final Thoughts
If I were buying a 20 Volt Dewalt grease gun today, I would focus on battery compatibility, pressure performance, comfort, and durability first. Those are the features that matter most to me when I’m actually using the tool. A good grease gun should make maintenance faster, cleaner, and less tiring, and that’s exactly what I would want from my purchase.
Final Thoughts
In my opinion, the 20 Volt Dewalt Grease Gun is a smart choice if you want faster, easier, and more consistent lubrication work. I like that it brings cordless convenience together with solid power, which makes it especially useful for regular maintenance and tough jobsite tasks. My takeaway is that it can save time, reduce effort, and help keep equipment running smoothly.
Author Profile
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Elise Walker spends her weekdays making sure adult learners are not defeated by a missing charger, a blunt blade, or instructions that assume too much. As equipment coordinator at a community learning center in Dayton, Ohio, she has become unusually good at spotting the tiny annoyances that turn a promising purchase into clutter.
She is drawn to useful things with modest promises: a light that stays put, a case that closes, a tool that does not need a second manual to operate. Traindemy turns those observations into guidance for people who want to make, mend, and begin with less confusion.
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