DEWALT 20V MAX Cordless Grease Gun DCGG581B — 10,000 PSI, 47" Hose, 2-Speed Variable Flow (Tool Only)

The DEWALT 20V MAX Cordless Grease Gun (DCGG581B) is a battery-powered, high-pressure grease dispenser that delivers up to 10,000 PSI and up to 9 oz per minute with a 47" reinforced hose for hard-to-reach fittings.

Designed for mechanics, farmers, fleet technicians and maintenance pros, this grease gun pairs cordless convenience with industrial-level pressure to clear clogged fittings and speed up lubrication tasks. The tool-only kit accepts DEWALT 20V MAX batteries (sold separately) and combines two operating speeds, a variable trigger and an onboard LED so you can work accurately in tight or dim spaces. With the capacity to push up to seven cartridges per charge, it helps reduce interruptions on busy jobsites.

How does the 2-speed system improve jobsite performance?

The two-speed selection lets you match output to the task: a high-flow setting for rapid bulk greasing and a high-pressure setting for stubborn or hard-to-reach fittings. The variable speed trigger adds fine control so you can avoid over-greasing sensitive components.

• High-flow mode dispenses up to 9 oz. per minute for fast filling.
• High-pressure mode reaches up to 10,000 PSI to clear blocked fittings.
• Variable trigger allows gradual start and precise amounts.

What makes the hose and nozzle setup useful for tight machinery?

The 47-inch reinforced, flexible hose extends reach around frames, axles and other crowded equipment while resisting kinks and wear. The long hose plus a secure nozzle connection lets you access fittings without straining or disassembling components.

• 47" reinforced hose for extended reach and durability.
• Flexible design maneuvers around obstacles and tight corners.
• Secure nozzle connection reduces leaks and wasted grease.

How long will a battery last and how much grease can it dispense?

Runtime depends on battery capacity, but using a compatible DEWALT 20V MAX battery this tool can dispense up to seven standard grease tubes per full charge. That runtime balance helps minimize downtime and keeps you working through multiple lubrication points without constant battery changes.

• Dispenses up to 7 tubes per charge with appropriate 20V MAX battery.
• Up to 9 oz. per minute flow on high-flow setting for fast jobs.
• Tool-only kit gives flexibility to use your existing DEWALT batteries.

What onboard features help with accuracy and durability?

The grease gun includes an onboard LED to illuminate fittings for precise nozzle placement in low-light conditions. Its reinforced hose and robust housing are built to withstand routine shop and field use, while DEWALT’s warranty and service options back long-term ownership.

• Onboard LED improves visibility at the nozzle for accurate alignment.
• Durable construction and reinforced hose for jobsite conditions.
• 3-year limited warranty, 1-year free service, 90-day satisfaction guarantee.

Who is this for: The DEWALT 20V MAX Cordless Grease Gun DCGG581B is aimed at professionals and advanced DIYers who need a powerful, portable lubrication solution—fleet maintenance crews, agricultural operators, heavy equipment technicians and workshop mechanics. If you already use DEWALT 20V MAX batteries and require both high flow and high pressure from one tool, this grease gun is designed to reduce service time and improve access to difficult grease points without relying on manual pumping.