milwaukee M18 Cordless 2-Speed Grease Gun 2646-20 Bare Tool — 10,000 PSI, 48" Hose

The Milwaukee M18 2646-20 is a cordless, 2-speed grease gun that delivers up to 10,000 PSI and a patent-pending preset grease counter for precise dispensing.

Built for technicians and maintenance teams, this M18 grease gun combines high pressure, adjustable flow, and user-oriented features in a battery-powered platform. The bare-tool model lets shops add a compatible M18 REDLITHIUM battery from their existing Milwaukee toolset, keeping things modular and reducing downtime. Its durable design and long, flexible hose improve access to tight fittings while the integrated controls simplify one-handed operation.

How does the two-speed system improve grease delivery?

The grease gun’s two-speed selector lets you switch between maximum pressure for stubborn fittings and high flow for rapid reservoir filling. That flexibility reduces the time spent changing tools or switching cartridges during service jobs. You get controlled force when you need it and fast throughput when speed matters.

• Select high-pressure mode for up to 10,000 PSI to break loose hard-packed fittings
• Choose high-flow mode for quick, low-resistance greasing of large bearings
• Easy thumb or dial selection for on-the-fly adjustments

What precision features help prevent over- or under-greasing?

The patent-pending pre-set grease counter gives repeatable, measurable dispensing so technicians can set and track exact quantities. A plunger rod with visible markings also shows how much grease remains in the barrel, simplifying inventory and job planning. Together they reduce waste and promote consistent maintenance intervals.

• Pre-set grease counter dial for repeatable dispensing amounts
• Marked plunger rod to gauge barrel grease level quickly
• Clear-barrel accessory compatibility for visual inspection of grease type and level

How does the tool handle hard-to-reach fittings and daily shop workflow?

A 48-inch flexible hose increases reach and makes it easier to access awkward grease fittings without repositioning equipment. The unit’s stand-up design and shoulder strap capability reduce user fatigue when greasing multiple points. An onboard LED light and lock-on/lock-off trigger simplify one-handed operation in low-light or repetitive tasks.

• 48" flexible hose for extended reach into tight or recessed fittings
• On-board LED light for improved visibility in dim areas
• Lock-on/lock-off trigger and ergonomic shape for extended use comfort

What maintenance and priming conveniences are included?

Quick priming is supported by an air bleeder valve that reduces the time taken to purge air from the system. The gun accepts standard grease cartridges and can work with the optional clear barrel accessory for visual confirmation of grease type and level. Rugged construction and compatibility with the M18 battery platform keep the tool ready on busy job sites.

• Air bleeder valve for faster, simpler priming
• Compatible with common grease cartridges and clear barrel accessory
• Durable build suited for shop and field service conditions

Who is this for: The Milwaukee M18 2646-20 is designed for fleet mechanics, industrial maintenance technicians, and service professionals who need reliable, high-pressure lubrication with measurable dispensing. It’s ideal for crews who already use the M18 battery ecosystem and want a cordless grease gun that balances power, reach, and accuracy without adding another proprietary battery type.