Milwaukee M18 Cordless 2-Speed Grease Gun (Tool-Only) — 48" Hose, 10,000 PSI, 10 oz/min

The Milwaukee M18 Cordless 2-Speed Grease Gun (2646-20, tool only) is a high-pressure, battery-powered grease gun that delivers up to 10,000 PSI and a flow rate of 10 oz./minute for fast, precise lubrication.

Designed for mechanics, fleet technicians, and maintenance teams, the Milwaukee M18 grease gun combines power, reach, and control in a compact cordless package. It uses the M18 platform for battery flexibility (battery sold separately) and includes a 48" flexible hose with spring guard plus a high-pressure coupler, making it simple to access tight fittings and apply lubricant quickly without the hassle of manual pumps or air lines.

How much pressure and flow can I expect from this grease gun?

This model offers industry-leading performance with a maximum operating pressure up to 10,000 PSI and a top flow rate of 10 ounces per minute. That combination reduces fill time and forces grease into packed fittings more effectively than many hand or pneumatic guns.

• Max operating pressure: 10,000 PSI for demanding applications
• Max flow-rate: up to 10 oz./minute to speed lubrication tasks
• Two-speed operation for balancing speed and control

What controls help me meter grease precisely?

Milwaukee built in a pre-set grease counter dial that lets you control dispense amounts without guesswork, so you avoid over- or under-lubrication. The air bleeder valve accelerates priming to remove trapped air and start dispensing smoothly.

• Pre-set grease counter dial for repeatable dispensing
• Air bleeder valve for quick and reliable priming
• Lock-on/lock-off trigger gives ergonomic control during long jobs

Will it reach fittings in cramped or awkward locations?

The 48" flexible hose with an integrated spring guard increases reach and protects against kinks, letting you route the hose into confined spaces. The included high-pressure grease coupler secures to fittings so you can work hands-free once connected.

• 48" flex hose for extended reach into hard-to-access areas
• Spring guard prevents hose collapse and wear at bends
• High-pressure coupler ensures a secure connection to fittings

Is this grease gun compatible with other Milwaukee tools and batteries?

The 2646-20 is part of the M18 REDLITHIUM System and accepts M18 batteries (battery and charger sold separately), enabling cross-compatibility across over 40 M18 tools. Running it on an M18 battery streamlines inventory and keeps downtime low when multiple Milwaukee tools are in use.

• M18 system compatibility with 40+ batteries and tools
• Tool-only package allows users to add their preferred M18 battery
• Compact cordless design removes need for hoses to air compressors

Who is this for: The Milwaukee M18 Cordless 2-Speed Grease Gun (2646-20) is aimed at professional technicians, service fleets, farm and heavy-equipment mechanics, and facility maintenance crews who need a dependable, high-pressure cordless solution. It suits users who prioritize speed, consistent dosing, and the convenience of the M18 battery ecosystem. Because this listing is tool only, add a compatible M18 REDLITHIUM battery and charger to create a complete, mobile lubrication system.