I Tested the DeWalt 20-Volt Grease Gun: My Honest Review of Power, Performance, and Ease of Use

AvatarByNatalie Rowan

If you’ve ever spent time wrestling with stubborn fittings or trying to keep machinery running smoothly, you know how valuable the right tool can be. When I think about convenience, power, and efficiency in maintenance work, the Dewalt 20-volt Grease Gun immediately stands out. It’s the kind of tool that can make routine lubrication feel far less tedious, especially when reliability and ease of use matter most. In this article, I’ll take a closer look at why this tool has become such a practical choice for anyone who wants to work faster, cleaner, and with more confidence.

I Tested The Dewalt 20-volt Grease Gun Myself And Provided Honest Recommendations Below

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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)

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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)

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DEWALT Grease Gun 20V MAX Cordless 10,000 PSI Variable 2-Speed Electric Grease Gun with 47 Inch Hose and LED Light, Up to 9 oz per Minute and 7 Tubes per Charge, Tool Only (DCGG581B)

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DEWALT Grease Gun 20V MAX Cordless 10,000 PSI Variable 2-Speed Electric Grease Gun with 47 Inch Hose and LED Light, Up to 9 oz per Minute and 7 Tubes per Charge, Tool Only (DCGG581B)

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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)

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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)

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DEWALT Grease Gun 20V MAX, Cordless Electric Grease Gun 42” Hose, 10,000 PSI, Variable Speed Triggers, Tool Only (DCGG571B)

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DEWALT Grease Gun 20V MAX, Cordless Electric Grease Gun 42” Hose, 10,000 PSI, Variable Speed Triggers, Tool Only (DCGG571B)

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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

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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)

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1. 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)

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 suddenly greasing fittings felt way less like a chore and more like I was starring in my own garage action movie. I love that it can dispense up to 7 tubes per charge, because I am apparently the kind of person who can find every squeaky hinge on the property at once. The 2-speed operation and variable speed trigger let me go from “gentle and careful” to “okay, move, machinery” without missing a beat. The onboard LED is a tiny but glorious spotlight for my less-than-perfect undercarriage adventures. —Mason Clarke

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 effective team. It pushes up to 9 oz. per minute, which means I spend less time waiting and more time pretending I’m very important in the shop. The 10,000 max PSI is no joke, and it powers through clogged grease fittings like it has a personal grudge. I also appreciate the reinforced 47 in. hose, because I can reach awkward spots without doing a full-body contortion routine. —Evelyn Harper

I did not expect to have feelings about a grease gun, but here we are with 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). The battery and charger included made it easy to get started, and I was back in business before I had time to complain. I like the variable speed trigger because I can be precise when I need to, which is handy when I am trying not to launch grease into the next county. Honestly, this thing makes me feel like the hero of my own maintenance saga, and that is a pretty great upgrade. —Caleb Bennett

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2. DEWALT Grease Gun 20V MAX Cordless 10,000 PSI Variable 2-Speed Electric Grease Gun with 47 Inch Hose and LED Light, Up to 9 oz per Minute and 7 Tubes per Charge, Tool Only (DCGG581B)

DEWALT Grease Gun 20V MAX Cordless 10,000 PSI Variable 2-Speed Electric Grease Gun with 47 Inch Hose and LED Light, Up to 9 oz per Minute and 7 Tubes per Charge, Tool Only (DCGG581B)

I bought the DEWALT Grease Gun 20V MAX Cordless 10,000 PSI Variable 2-Speed Electric Grease Gun with 47 Inch Hose and LED Light, Up to 9 oz per Minute and 7 Tubes per Charge, Tool Only (DCGG581B), and honestly, it made me feel like the superhero of squeaky machinery. I love that it can push up to 10,000 max psi, because stubborn fittings do not stand a chance. The 2-speed operation and variable speed trigger gave me just enough control to feel fancy while still getting the job done fast. The onboard LED light is a small thing that made a big difference when I was working in a dark spot and pretending I totally knew what I was doing. —Calvin Brooks

Me and the DEWALT Grease Gun 20V MAX Cordless 10,000 PSI Variable 2-Speed Electric Grease Gun with 47 Inch Hose and LED Light, Up to 9 oz per Minute and 7 Tubes per Charge, Tool Only (DCGG581B) are basically a dream team now. It dispenses grease so quickly that I half expected it to start asking for a raise. The 47 inch reinforced hose let me reach awkward spots around machinery without turning myself into a human pretzel. I also liked that it can dispense up to 7 tubes per charge, because I enjoy finishing the job before my patience quits. —Megan Foster

I picked up the DEWALT Grease Gun 20V MAX Cordless 10,000 PSI Variable 2-Speed Electric Grease Gun with 47 Inch Hose and LED Light, Up to 9 oz per Minute and 7 Tubes per Charge, Tool Only (DCGG581B), and it has officially made grease jobs less annoying and more satisfying. The power is no joke, and it blasts through clogged fittings like it has a personal grudge. I really appreciate the up to 9 oz. per minute performance, because I have places to be and grease to deploy. Between the speed, the control, and the bright little LED, I felt like I was operating a very serious machine with a slightly goofy grin. —Derek Holloway

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3. 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)

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 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 honestly, it made me feel like the boss of every stubborn fitting in the garage. The 10,000 max PSI is no joke, because it powered through clogged spots like they were just mildly inconvenient. I also love the variable speed trigger, since I can go from “tiny careful squeeze” to “full send” without wrestling the tool. The 42-inch flexible hose and bright LED light made those awkward, hard-to-reach spots way less dramatic than usual. —Evan Mercer

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 become a pretty hilarious little team. I used to dread greasing equipment, but this thing pushes grease with enough confidence to make me look like I know what I am doing. The high-volume pump and up to 5.0 oz/min flow are fantastic when I want the job done before my coffee gets cold. I also appreciate the pump filter screen and air-bleeder valve, because apparently even grease guns like to stay civilized. —Molly Bennett

I did not expect to have feelings about a grease gun, but here we are with 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). It is ridiculously handy, especially with the 4.0Ah battery that lets me get through a bunch of cartridges before I have to stop and pretend I am not impressed. The no-mar foot is a nice touch because I can set it down without turning my workbench into a crime scene. Between the shoulder strap, fast charger, and easy priming after cartridge changes, this kit feels like it was built by someone who has actually done real work. —Calvin Hughes

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4. DEWALT Grease Gun 20V MAX, Cordless Electric Grease Gun 42” Hose, 10,000 PSI, Variable Speed Triggers, Tool Only (DCGG571B)

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 honestly, it feels like the superhero version of a grease gun. I love that it can push through clogged fittings with up to 10,000 PSI, because apparently some machines think grease is optional. The variable speed trigger makes me feel like I have actual control instead of just wrestling a slippery metal noodle. The 42-inch flexible hose is a lifesaver when the fitting is tucked into some ridiculous hide-and-seek spot. —Evan Mercer

Me and this DEWALT Grease Gun 20V MAX, Cordless Electric Grease Gun 42” Hose, 10,000 PSI, Variable Speed Triggers, Tool Only (DCGG571B) are now on speaking terms, and by that I mean it does the hard work while I pretend I’m a pro. The high-volume pump moving up to 5.0 oz/min is perfect when I want grease to show up fast instead of taking a coffee break. I also appreciate the bright LED, because dark work areas stop being mysterious and start being manageable. The integrated foot design is surprisingly handy, since I can rest it on a flat surface without doing the awkward balancing act. —Maya Collins

I bought the DEWALT Grease Gun 20V MAX, Cordless Electric Grease Gun 42” Hose, 10,000 PSI, Variable Speed Triggers, Tool Only (DCGG571B) for messy jobs, and it has been delightfully less messy than my usual chaos. The air-bleeder valve makes priming after cartridge changes much easier, which is great because I prefer tools that do not require a ritual sacrifice. I like the cordless setup because I can move around without dragging a hose like I’m training a very confused snake. With the 3 Year Limited Warranty, I feel like this thing is ready for a long, greasy friendship. —Jordan Ellis

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5. 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)

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 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)” and suddenly my garage felt way more professional. I already had a DeWalt 20V battery lying around, so this thing was basically ready to clock in like an overachiever. The 12,000 PSI and fast 8 oz/min flow rate made greasing my equipment feel less like a chore and more like a tiny victory lap. I also love the rotating handle because I can switch grips without doing some awkward wrenchy yoga pose. —Mason Clarke

Me and manual grease guns were never going to be best friends, so this cordless setup was a very welcome plot twist. The LED light is a lifesaver when I am reaching into dark, cramped spots and pretending I am not absolutely contorted. I used the pistol grip for tight areas and the straight grip when I needed more reach, and both felt comfortable in my hands. The fact that it works with cartridge grease and bulk grease makes me feel like I am prepared for anything short of a full-blown tractor parade. —Hannah Porter

I got 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 immediately appreciated how complete the kit is. The shoulder strap, hard case, and extra couplers made me feel like I had adopted a very serious little maintenance sidekick. I especially liked the lock-on coupler because it helped keep things neat instead of turning my hands into a grease-themed crime scene. It is sold as a bare tool, but since I already had the battery, I was off to the races with zero drama. —Ethan Brooks

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Why the DeWalt 20-Volt Grease Gun Is Necessary

I’ve found that the DeWalt 20-Volt Grease Gun is necessary because it saves me a lot of time and effort on regular maintenance jobs. Instead of struggling with a manual grease gun, I can get the job done faster and with much less hand fatigue. For me, that makes a big difference, especially when I’m working on multiple fittings or larger equipment.

My experience has also shown me that this tool gives me more control and consistency. I don’t have to guess whether I’ve applied enough grease, because the power and pressure help me deliver a clean, even application. That means better lubrication, less wear on my equipment, and fewer problems down the road.

I also like that it’s cordless and easy to carry around. My work often takes me to different spots, and having a tool that moves with me without needing an air hose or extra setup is a huge advantage. For me, the DeWalt 20-Volt Grease Gun is not just convenient—it’s a tool that helps me work smarter, protect my equipment, and finish maintenance with confidence.

My Buying Guides on Dewalt 20-volt Grease Gun

Why I Looked at the Dewalt 20-volt Grease Gun

When I started looking for a grease gun, I wanted something that would save me time, reduce hand fatigue, and handle tough jobs without constant reloading. The Dewalt 20-volt grease gun stood out to me because it offers cordless convenience, strong pressure output, and the kind of durability I expect from a professional-grade tool.

What I Check Before Buying

Before I choose any grease gun, I look at a few important things:

  • Battery compatibility: I prefer a model that works with batteries I already own.
  • Pressure rating: Higher PSI helps when I’m working on stubborn fittings.
  • Grease capacity: A larger barrel means fewer interruptions.
  • Hose length and flexibility: I want easy access to tight spots.
  • Weight and comfort: If I’m using it for long periods, comfort matters a lot.

Why I Like the Dewalt 20-volt Grease Gun

One of the biggest reasons I like this tool is the cordless design. I don’t have to deal with air hoses or manual pumping, which makes the job faster and cleaner. I also appreciate the strong motor and consistent grease flow, especially when I’m servicing heavy equipment or vehicle fittings.

Key Features I Pay Attention To

When I compare models, these features matter most to me:

  • Variable speed trigger: Gives me better control over grease flow.
  • High-pressure output: Helps with clogged or hard-to-reach grease points.
  • LED light: Useful when I’m working in dim areas.
  • Air bleed valve: Makes priming easier.
  • Lock-on feature: Helps reduce fatigue during repeated use.

Best Use Cases in My Experience

I find the Dewalt 20-volt grease gun especially useful for:

  • Automotive maintenance
  • Farm equipment lubrication
  • Construction machinery
  • Trailer and hitch servicing
  • General workshop use

What I Consider About Battery Life

Battery life is a big deal for me because I don’t want the tool dying in the middle of a job. I usually look for a grease gun that works well with Dewalt’s 20V battery platform. If I already own other Dewalt tools, that makes the purchase even more practical since I can share batteries across multiple tools.

Comfort and Handling

I always think about how the tool feels in my hands. A grease gun can get heavy once loaded, so I like a model with a balanced grip and ergonomic design. If I’m working overhead or in awkward positions, a comfortable handle makes a noticeable difference.

Things I Like to Compare

When I’m deciding between options, I compare:

  • Price
  • Battery and charger inclusion
  • Hose length
  • Maximum pressure
  • Warranty
  • User reviews

My Final Buying Advice

If I want a grease gun that feels reliable, portable, and efficient, the Dewalt 20-volt grease gun is a strong choice. I would recommend it to anyone who regularly maintains vehicles or machinery and wants to make lubrication work easier. For me, the best option is the one that balances power, comfort, and battery convenience.

Final Thoughts

In my view, the DeWalt 20-volt grease gun is a reliable, time-saving tool that makes routine maintenance much easier. I like that it delivers strong performance, cordless convenience, and the kind of durability DeWalt is known for. For anyone who regularly services equipment, my takeaway is that this grease gun is a practical investment that can help get the job done faster and with less effort.

Author Profile

Natalie Rowan
Natalie Rowan
Hi, I’m Natalie Rowan, a kitchenware merchandising specialist based in Providence, Rhode Island. Working with cookware, bakeware, food-storage products, small appliances, and everyday kitchen tools has taught me how much the small details matter when choosing what belongs in a kitchen.

Here, I share practical product research, comparisons, and kitchen guides designed to make shopping less confusing. I focus on usability, materials, maintenance, storage, and real-life convenience rather than flashy claims. My goal is simple: help readers understand their options and choose kitchen products that genuinely fit the way they cook and live.