Key Features
10,000 PSI OutputWhen a fitting is clogged, low-pressure tools waste time. This grease gun delivers up to 10,000 max PSI so you can push grease through stubborn points and keep equipment moving. 2-Speed ControlThe two-speed setup plus variable speed trigger lets you choose between faster output and more controlled delivery. That matters when you need to work cleanly around seals, bearings, and tight service points. Built for Service WorkThe DEWALT DCGG581B 20V MAX 2-Speed Grease Gun is made for maintenance work where reach and runtime matter. A reinforced 47 inch hose, onboard LED, and output up to 9 ounces per minute help you work faster around machinery.
Overview
The DEWALT DCGG581B 20V MAX 2-Speed Grease Gun is a cordless grease gun built for equipment maintenance, fleet service, and shop work where hand pumping is slow and clogged fittings are common. This is a grease gun designed for high-flow lubrication and hard-to-reach grease fittings. Model Number: DCGG581B. If you already run on the DEWALT 20V MAX platform and want a faster way to service machinery, trailers, heavy equipment, or agricultural gear, this is the tool that makes that job a lot less miserable.
The headline spec here is up to 10,000 max PSI. That matters because grease work is rarely clean or easy in the real world. Old fittings, dried grease, and awkward service points can stop a weaker tool cold. The pressure on this cordless grease gun gives you the force needed to push through stubborn fittings, while the output of up to 9 ounces per minute helps move through routine service intervals faster when you have multiple zerks to hit.
DEWALT also gave this model 2-speed operation and a variable speed trigger, which is more useful than it sounds on paper. Fast output is great when you are doing repetitive maintenance on larger machines. Controlled output matters when you need to avoid overfilling, keep grease where it belongs, and work around seals or cleaner service points. Instead of a one-speed blast, you get better control over both pace and precision.
The 47 inch reinforced flexible hose is a big part of why this tool works well on actual equipment. You are not always greasing a fitting that is out in the open. Many are tucked behind guards, under decks, or around suspension and driveline components. A longer reinforced hose gives you room to position the tool where it is comfortable while still reaching the fitting. That reduces fighting the tool and helps you work around machinery instead of against it.
For day-to-day jobsite practicality, DEWALT includes an onboard LED to help light up darker service areas and line up the nozzle. Anyone who has worked under a trailer, beside a piece of construction equipment, or around shop bays knows that grease points are often exactly where the light is worst. It is a simple feature, but it saves time and makes hookup less frustrating.
Runtime is another strong point. DEWALT states this grease gun can dispense up to 7 tubes per charge under stated test conditions using NLGI #2 grease and a DCB203 battery, sold separately. Since this is a bare tool, it is best for users who already own compatible DEWALT 20V MAX batteries and chargers. That makes it a smart add-on for mechanics, heavy equipment operators, maintenance techs, farm users, and contractors who are already invested in the platform and want to skip manual grease guns for good.
Who should buy it? If you service equipment regularly and want a cordless grease gun that combines serious pressure, decent output speed, and better reach than a basic manual setup, this one makes sense. It is especially well suited for automotive service, fleet maintenance, agriculture, construction equipment upkeep, and shop environments where grease work is frequent enough that saving a few minutes per machine adds up fast.
Reach Tight Grease Points Easier
This cordless grease gun is built to make routine lubrication faster and less awkward, especially when fittings are buried behind components or under equipment.
- 47 inch reinforced flexible hose helps you reach around machinery
- Onboard LED helps align the nozzle in darker service areas
- Shoulder strap is included for easier carry during longer maintenance work
What’s in the Box
- (1) DCGG581 20V MAX 2-Speed Grease Gun
- (1) Shoulder Strap
Battery and charger are sold separately.
Key Specifications
| Voltage | 20 V |
|---|---|
| Max Pressure | 10,000 PSI |
| Output Rate | Up to 9 oz/min |
| Runtime | Up to 7 tubes per charge |
| Hose Length | 47 in |
| Work Light | Onboard LED |
| Weight | 9.06 lbs |
| Batteries Included | No |
Compatibility
Battery PlatformCompatible with the DEWALT 20V MAX battery system. Battery and charger are not included with this bare tool. Grease TypePerformance claims are based on use with NLGI #2 grease.
Built For
Automotive Fleet Maintenance Agricultural Equipment Service Construction Equipment Maintenance Shop Service Work Heavy Equipment Lubrication
Pro Tip
If you are servicing a lot of fittings in one round, use the higher speed to move faster, then back off with the variable speed trigger as the fitting takes grease. It is the easiest way to keep pace without overdoing cleaner or smaller service points.
Warranty & Support
3 Year Limited Warranty, 1 Year Free Service, 90 Day Satisfaction Guaranteed.
Tool Nut’s Take
Tool Nut’s Take
DEWALT DCGG581B 20V MAX 2-Speed Grease Gun Means Less Pumping, More Servicing
The DEWALT DCGG581B 20V MAX 2-Speed Grease Gun is the kind of tool that pays for itself in saved time if you grease equipment regularly.
- Who it’s for: Mechanics, maintenance crews, farm users, and contractors servicing trailers, heavy equipment, and shop machinery.
- Why it stands out: The combo of 10,000 PSI, two-speed control, strong output, and a long reinforced hose gives you both power and usability.
- Worth knowing: This is a bare tool, so it makes the most sense if you already own DEWALT 20V MAX batteries and charger.
Common Questions
- Is this a cordless or corded grease gun? It is a cordless grease gun.
- What battery platform does it use? It uses the DEWALT 20V MAX platform.
- Does it include a battery or charger? No. This is a tool-only or bare-tool version.
- How much pressure can it produce? DEWALT rates it at up to 10,000 max PSI.
- Does it have a light for low-visibility service points? Yes. It has an onboard LED to help align the nozzle.
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