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Milwaukee
Milwaukee 2646-21CT M18 FORCE LOGIC Grease Gun
- M18 battery platform
- 10,000 PSI
- FORCE LOGIC motor
- LED light
Sponsored link · confirm price and availability on Amazon · updated
On this page
Is the Milwaukee 2646-21CT M18 FORCE LOGIC Grease Gun worth it?
Yes, for the right buyer. The Milwaukee 2646-21CT M18 FORCE LOGIC Grease Gun ranks #3 in our Best Cordless Grease Guns 2026 list. Its biggest strength: m18 battery compatibility with Milwaukee's complete 18V tool ecosystem. The main caveat: highest price of cordless guns.
Overview
What the Milwaukee 2646-21CT M18 FORCE LOGIC Grease Gun does well
Keep in mind that highest price of cordless guns.
Specs that matter
Key features
- M18 battery platform
- 10,000 PSI
- FORCE LOGIC motor
- LED light
The trade-offs
Pros & cons
Pros
- M18 battery compatibility with Milwaukee's complete 18V tool ecosystem
- 10,000 PSI FORCE LOGIC motor for maximum pressure on seized fittings
- Milwaukee's reliability and warranty reputation in professional tools
Cons
- Highest price of cordless guns
Fit check
Should you buy the Milwaukee 2646-21CT M18 FORCE LOGIC Grease?
Think twice if this matters to you
- Highest price of cordless guns
Where it ranks
Featured in 1 best-of list
| List | Rank |
|---|---|
| Best Cordless Grease Guns 2026 | #3 / 10 |
Cross-shop
Alternatives to the Milwaukee 2646-21CT M18 FORCE LOGIC Grease Gun
Products ranked near it in our research, each better for a slightly different buyer.
- Best OverallLincoln Industrial
Lincoln Industrial 1162 12V PowerLuber
- 12V battery powered
- Up to 6,000 PSI
Buying advice: grease guns
- Lever for power, pistol-grip for one-handed access, cordless for volume.
- Flexible hoses reach fittings behind wheels and under equipment.
- Locking couplers hold onto fittings and reduce leaks.
- 14 oz cartridges are standard. Check compatibility.
- A bleeder valve helps release trapped air when loading.
Read the full guides
Answers
Milwaukee 2646-21CT M18 FORCE LOGIC Grease Gun: common questions
Is the Milwaukee 2646-21CT M18 FORCE LOGIC Grease Gun worth buying?
Yes, for the right buyer. The Milwaukee 2646-21CT M18 FORCE LOGIC Grease Gun ranks #3 in our Best Cordless Grease Guns 2026 list. Its biggest strength: m18 battery compatibility with Milwaukee's complete 18V tool ecosystem. The main caveat: highest price of cordless guns.
What are the downsides of the Milwaukee 2646-21CT M18 FORCE LOGIC Grease Gun?
The main trade-offs owners and reviewers point to: highest price of cordless guns.
What are the key features of the Milwaukee 2646-21CT M18 FORCE LOGIC Grease Gun?
M18 battery platform, 10,000 PSI, FORCE LOGIC motor and LED light.
What are the best alternatives to the Milwaukee 2646-21CT M18 FORCE LOGIC Grease Gun?
Worth comparing: DEWALT DCGG571M1 20V MAX Grease Gun Kit, Lincoln Industrial 1162 12V PowerLuber and Makita XGP01Z 18V LXT Grease Gun. Each ranks near it in our research for a slightly different buyer.
Where can I buy the Milwaukee 2646-21CT M18 FORCE LOGIC Grease Gun?
It's sold on Amazon. Prices and stock change often, so check the current listing before you buy, our link takes you straight to it.
How do I know how much grease to inject into a fitting?
Over-greasing is as damaging as under-greasing, excess pressure blows the grease seal and expels the grease that was protecting the bearing. For most automotive and light-equipment zerks: inject until you see fresh grease appear at the seal lip. Count the number of pumps and record it for future reference, a wheel bearing might take 3 pumps, a U-joint 1 pump. For fittings with a grease nipple that vents: pump until the vent releases. Do not force grease against resistance, if a zerk feels blocked, switch to a needle coupler and check the fitting before continuing.
What type of grease should I use?
NLGI grade 2 multipurpose lithium grease handles most automotive chassis, wheel bearing, and general purpose applications. For high-temperature applications (brake components, oven conveyor bearings): use a high-temp red grease rated for the operating temperature. For marine or wet environments: a water-resistant marine grease. For food-processing equipment: NSF H1-rated food-grade grease. Do not mix grease types, different base oils and thickeners are chemically incompatible and can break down lubrication properties. If switching grease types: purge the old grease fully before switching.