Milwaukee M12 Cordless Grease Gun 2446-20 (Bare Tool) — Compact 14", 8,000+ PSI, 7- cartridge Run-Time

The Milwaukee M12 2446-20 is a compact cordless grease gun that delivers up to 8,000 PSI and dispenses as many as seven grease cartridges per battery charge (battery sold separately).

Designed for pro shops and jobsite mechanics who need a powerful, portable lubrication tool, this M12 bare tool balances high pressure with an ergonomic build. It replaces manual guns for faster priming, consistent flow, and less fatigue during repetitive service tasks. The 14" length and integrated hose storage keep the tool manageable in tight spaces while preventing grease drips and clutter.

How much pressure and run-time can I expect from this cordless grease gun?

The M12 grease gun produces more than 8,000 PSI max operating pressure for heavy-duty fittings and stubborn zerk points. On a single battery charge it can dispense up to seven standard grease cartridges, offering extended run-time for busy service days.

• Max operating pressure: over 8,000 PSI
• Run-time: up to 7 grease cartridges per charge
• Grease capacity: 14 oz cartridge, 16 oz bulk fill

What features help reduce mess and make the tool easier to handle?

Milwaukee engineered the gun with on-board hose storage and a shoulder-strap loop to keep the hose stowed and hands free when moving between tasks. An LED fuel gauge shows remaining battery life at a glance, while the air bleeder valve and bulk filler help prevent air locks and simplify priming.

• Integrated hose storage and shoulder strap loop for neat transport
• Air bleeder valve for quick priming and steady flow
• Bulk filler valve reduces spills during bulk refills

Is the tool comfortable for extended use and easy to carry around a shop or jobsite?

At roughly 7.2 lbs and 14" in length, the M12 2446-20 is engineered for balance and reduced user fatigue during extended sessions. Its compact form factor improves access in confined areas while preserving the power needed for demanding lubrication tasks.

• Lightweight design: approximately 7.2 lbs for less arm strain
• Compact form: 14 inches long for tight-access jobs
• Ergonomic handle for added comfort during long use

What comes in the box and what do I need to add?

The bare-tool package includes the 2446-20 grease gun, a 36" flex hose with spring guard, and a grease coupler. You will need to provide an M12 battery and charger (sold separately) to run the tool.

• Included: 2446-20 grease gun, 36" flex hose with spring guard, grease coupler
• Not included: M12 battery and charger (sold separately)
• Made to accept 14 oz cartridges or 16 oz bulk fill

Who is this for? The Milwaukee M12 2446-20 is aimed at mechanics, fleet technicians, heavy-equipment operators, and maintenance professionals who need a durable, high-pressure cordless grease solution without committing to a battery platform. Choose this bare tool if you already own M12 batteries or prefer to add your own battery and charger to match existing kit. Its combination of pressure, run-time, and compact ergonomics makes it a practical upgrade from manual or lower-pressure electric grease guns for repetitive lubrication work.