Top 10 Cordless Grease Guns — Best Overall + Best Value in 2027

1Milwaukee M18 2-Speed 2646-20

It ranks first because it pairs a true two-speed motor with a 10,000 PSI ceiling, delivering up to 10 oz/min on high and 3.5 oz/min on low for stubborn fittings. It runs standard 14 oz cartridges or bulk fill, ships with a 48-inch hose, an air-bleeder valve, and a spring-loaded follower. One M18 REDLITHIUM pack dispenses up to 10 cartridges per charge.

It is built for pros and fleet techs already invested in the M18 platform, who get the deepest battery ecosystem in the trades. It trades away light weight, coming in near 9 lbs with a battery, and the bare-tool price climbs once you add a high-capacity pack. Compared with the Ryobi P3410 below, it costs more but adds a genuine low-speed high-pressure mode.

2Ryobi ONE+ 18V P3410

It takes second as the value champion, matching the field's headline 10,000 PSI while moving a quick 7.5 oz/min for $149 tool-only, often $90 on sale. It includes an air-bleeder valve for priming and an onboard LED, plus a 30-inch flexible hose. A 4.0 Ah ONE+ pack pumps up to 19 cartridges per charge, the most here.

It suits homeowners and DIYers already in Ryobi's 280-plus-tool ONE+ ecosystem. It trades away the two-speed motor found on the Milwaukee above, so there is no dedicated low-speed high-pressure mode, and its 30-inch hose is shorter than pro kits. Against the DEWALT DCGG571M1 below, it gives up hose reach but costs roughly $110 less.

3DEWALT 20V MAX DCGG571M1

It lands third on the strength of a 42-inch hose, the longest on this list, plus a 10,000 PSI rating and a steady 5 oz/min through a variable-speed trigger. A 4.0 Ah DEWALT 20V MAX pack pushes up to 16 cartridges per charge. The kit adds an LED, a pump filter screen to keep grit out, and an air-bleeder for priming.

It is aimed at DEWALT 20V owners who value hose reach and fine trigger control over raw flow. It trades away top-end speed, since the single-speed motor caps flow at 5 oz/min versus the Ryobi's 7.5 oz/min above, and it is the priciest of the mainstream big-three kits at $259. Buy it if you already own 20V MAX packs.

4Lincoln PowerLuber 1884 20V

It ranks fourth because its two-speed motor holds 10,000 PSI in both high- and low-output modes, so you never trade pressure for speed on a packed fitting. The kit ships with two 20V Li-ion packs, a 36-inch hose, a three-point base, a comfort grip, and a built-in LED. It takes 14 oz cartridges with a reliable follower and carries a 5-year tool warranty.

It is built for heavy-equipment and industrial mechanics who grease all day and need a second battery always charging. It trades away portability, weighing roughly 14 lbs as a kit, the heaviest here, and its $329 price sits above the big three. Compared with the DEWALT above, it adds dual batteries and full-pressure low speed but costs about $70 more.

5Makita XPG01 18V LXT

It takes fifth by tying the field for raw speed at up to 10 oz/min and 10,000 PSI, pushed through a 47-inch flexible hose, the longest pro line here. An auto-speed mode ramps with the variable-speed trigger, and twin LED lights spotlight hidden Zerks. It adds a stand-up design with shoulder strap, an air-bleed valve, and a lock-on button for continuous flow.

It is the high-flow choice for Makita LXT owners working large machinery, where fast fills matter more than metering. It trades away a dedicated low-speed-only high-pressure setting and ships bare-tool only at $239, so battery and charger cost extra. Against the Lincoln 1884 above, it flows faster and weighs less but lacks the dual-battery kit and 5-year warranty.

6Milwaukee M12 2-Speed 2446-20

It ranks sixth as the most one-hand-friendly gun here, weighing just 7.2 lbs in a compact 14-inch body while still hitting 8,000 PSI at roughly 2.6 oz/min. It runs a 36-inch hose, includes an air-bleeder valve, and takes 14 oz cartridges or bulk fill with a follower. A REDLITHIUM M12 pack dispenses up to 7 cartridges per charge.

It is made for auto techs working tight engine bays and under-car fittings where the bigger M18 feels clumsy. It trades away flow and runtime, since 2.6 oz/min is slow for large-bearing fills and 7 cartridges per charge is the lowest here. Against the Makita XPG01 above, it is far lighter and nimbler but gives up roughly 7.4 oz/min of output and 2,000 PSI.

7Lincoln PowerLuber 1264 12V

It lands seventh by bringing Lincoln's industrial pedigree to a lighter 12V platform, running single-speed at 8,000 PSI with a 30-inch high-pressure hose. It ships as a complete kit with a 12V Li-ion pack, charger, and case, plus a three-point base, comfort grip, and built-in LED. It takes standard 14 oz cartridges with a dependable follower and carries a 5-year tool warranty.

It suits buyers who want Lincoln reliability without the 14-lb bulk of the 1884 above. It trades away pressure and speed, capped at 8,000 PSI single-speed, and at $229 it is pricey for a 12V gun. Compared with the Milwaukee M12 above, it adds a full kit and longer warranty but weighs more and flows slower, making it the choice for durability over maneuverability.

8Metabo FP 18 LTX Cordless

It ranks eighth as the precision instrument of the group, topping out near 10,000 PSI (690 bar) with a 10-position thumbwheel that dials in either high pressure or high flow per job, far finer than a two-speed switch. It supports three-way filling by cartridge, container, or direct fill, plus a switch lock for continuous mode and a housing LED. It runs on Metabo's 18V LTX platform with a follower and air-bleed.

It targets industrial maintenance crews who meter grease deliberately rather than blasting it. It trades away value and ecosystem support, carrying the highest price here at $349 and a smaller LTX battery footprint in North America. Against the Lincoln 1264 above, it offers vastly more dosing control and pressure but costs $120 more and lacks the widespread battery compatibility.

9Bauer 20V Variable-Speed

It takes ninth as the budget cordless entry, undercutting everyone at about $99 tool-only from Harbor Freight. It offers a variable-speed trigger, useful pressure for most automotive and trailer fittings, an air-bleeder valve to prime, a flexible hose, and a built-in LED. It runs standard 14 oz cartridges with a follower and joins the growing Bauer 20V platform.

It is for occasional users who grease a trailer and mower a few times a season and cannot justify pro pricing. It trades away duty cycle and platform depth, since the Bauer 20V lineup is smaller and less proven than the majors. Compared with the Metabo above, it saves roughly $250 but gives up the 10-position dosing wheel and industrial build entirely.

10Astro Pneumatic 7700 Cordless

It closes the list as a platform-neutral option delivering strong working pressure for automotive and light-fleet fittings at $159. It includes a flexible hose, an air-bleeder valve to clear air pockets, an onboard LED, and runs standard 14 oz cartridges with a follower. As a tool-focused brand rather than a battery ecosystem, it competes on standalone value.

It suits independent shops that do not want to commit to Milwaukee, DEWALT, or Makita batteries. It trades away ecosystem leverage, since there is no shared battery platform to build on and less brand-wide tool support than the majors. Against the Bauer above, it costs $60 more but offers better build and priming for techs who grease daily.

How we ranked these

We weighted real, currently-shipping cordless grease guns on the specs that matter when a Zerk fitting is packed with old grease and you are flat on your back under a tractor. Max pressure (PSI) carried 25%, grease output in oz/min 20%, battery platform and runtime 15%, hose, follower, and air-bleeder valve 15%, build and ergonomics 15%, and price-to-performance 10%.

Published specs came from manufacturer sheets and were cross-checked against Pro Tool Reviews, ToolGuyd, The Drive, and Family Handyman.

We deliberately ignored headline cartridges-per-charge claims, since most users top off a battery long before draining it, and skipped onboard digital counters and app features that add cost without changing how a gun primes or pumps. We also set aside brand marketing language and sponsored rankings. Pressure, flow, hose reach, and the battery platform a buyer already owns decide satisfaction far more than spec-sheet flourishes.

Related questions

What is the best cordless grease gun overall in 2027?

The Milwaukee M18 2-Speed Grease Gun (2646-20) at $199 bare is our Best Overall pick. It hits 10,000 PSI, runs a genuine two-speed motor at up to 10 oz/min on high and 3.5 oz/min on low, and shares the deepest battery platform in the trades. If you already own M18 packs, it is the easiest yes on the list.

Which cordless grease gun is the best value?

The Ryobi ONE+ 18V Grease Gun (P3410) at $149 tool-only, often $90 on sale, is the Best Value. It matches pro guns at 10,000 PSI, moves 7.5 oz/min, includes an air-bleeder valve and LED, and pumps up to 19 cartridges per charge on a 4.0 Ah pack. No real pressure compromise at roughly half the price.

Do I need 10,000 PSI or is 8,000 PSI enough?

For everyday automotive and trailer work, 8,000 PSI clears most Zerks, which is why the Milwaukee M12 2446-20 and Lincoln 1264 stay popular. For neglected farm and heavy equipment with packed or cold fittings, choose 10,000 PSI, ideally with a two-speed motor so you can hold full pressure at low flow without stalling.

What is the lightest cordless grease gun on this list?

The Milwaukee M12 2-Speed Grease Gun (2446-20) weighs just 7.2 lbs with battery, making it the most one-hand-friendly gun here. It still delivers 8,000 PSI through a 36-inch hose and a compact 14-inch body, which fits tight engine bays where the heavier M18 feels clumsy. Flow is lower at about 2.6 oz/min.

Which cordless grease gun has the longest hose?

The Makita XPG01 leads with a 47-inch flexible hose, followed closely by the Milwaukee M18 2646-20 at 48 inches and the DEWALT DCGG571M1 at 42 inches. Longer hoses let you reach awkward fittings on large machinery without repositioning the gun or dragging a creeper around the equipment.

Is a cordless grease gun worth it over a manual lever gun?

Yes, if you grease more than a handful of fittings regularly. Cordless guns save your hands, prime faster with an air-bleeder valve, and meter grease more evenly. For a single trailer hub once a year, a $25 manual lever gun is lighter, cheaper, and never needs charging, so cordless only pays off with repeat use.

Can I use bulk grease instead of 14 oz cartridges?

Most guns on this list accept bulk suction fill as well as standard 14 oz cartridges. Bulk is cheaper at volume but messier and slower to load, while cartridges are faster and cleaner for occasional use. The best guns, including the Milwaukee M18 and Lincoln PowerLuber 1884, do both without extra adapters.

Which battery platform should I pick for a grease gun?

The one you already own. Milwaukee M18, DEWALT 20V MAX, Makita LXT, and Ryobi ONE+ all make excellent 10,000 PSI guns, so buying the model matching your existing packs and charger saves hundreds versus starting a new ecosystem. Platform lock-in is usually the deciding factor, not raw specs.

FAQ

What PSI do I actually need in a cordless grease gun?

For everyday automotive and trailer work, 8,000 PSI is plenty. For neglected farm and heavy equipment with packed fittings, choose 10,000 PSI and ideally a two-speed gun so you can hold full pressure at low flow. Pressure matters most on cold grease and fittings that have not been serviced in years.

Is a cordless grease gun worth it over a manual lever gun?

Yes, if you grease more than a handful of fittings regularly. Cordless guns save your hands, prime faster with an air-bleeder valve, and meter grease more evenly. For one annual job, a manual gun is still the cheaper, simpler tool and never needs a charged battery.

Which battery platform is best for a grease gun?

The one you already own. Milwaukee M18, DEWALT 20V MAX, Makita LXT, and Ryobi ONE+ all make excellent 10,000 PSI guns, so buy the one matching your existing packs and skip a second charger. Platform lock-in usually costs more than any spec difference between these tools.

Why does my cordless grease gun stop pumping grease?

Almost always an air pocket. Open the air-bleeder valve to prime the pump, make sure the follower rod is engaged, and confirm the cartridge seated cleanly. Air-locking after a swap is the number-one cause of a gun that runs but moves no grease, and it is usually a two-minute fix.

Can I use bulk grease instead of cartridges?

Most guns on this list accept bulk suction fill as well as standard 14 oz cartridges. Bulk is cheaper at volume but messier; cartridges are faster and cleaner for occasional use. The best guns, including the Milwaukee M18 and Lincoln PowerLuber 1884, handle both without extra adapters.

How many cartridges does one charge last?

It varies widely: about 7 on the compact Milwaukee M12, up to 16 on the DEWALT DCGG571M1, and as many as 19 on the Ryobi P3410 with a 4.0 Ah pack. Real-world users rarely drain a battery before topping off, so treat these numbers as a ceiling, not a target.

What is the difference between single-speed and two-speed grease guns?

A single-speed gun runs one flow rate at its rated pressure. A two-speed gun, like the Milwaukee M18 2646-20, gives you high flow for fast bearing fills and low flow at full pressure to grind through stubborn fittings. Two-speed costs more but handles both jobs without compromise.

Does hose length really matter on a grease gun?

Yes. A 36-to-48-inch hose reaches fittings without moving the gun, which matters on large machinery, under vehicles, and inside engine bays. The Makita XPG01 at 47 inches and Milwaukee M18 at 48 inches lead here, while shorter 30-inch hoses force more repositioning per fitting.

Are cheap cordless grease guns like the Bauer 20V any good?

For occasional use, yes. The Bauer 20V at about $99 tool-only offers a variable-speed trigger, air-bleeder, LED, and standard 14 oz cartridge compatibility. It will not match a Milwaukee on duty cycle or battery ecosystem, but for greasing a trailer and mower a few times a season it is hard to argue with the price.

What should I check before buying a cordless grease gun?

Confirm max pressure, flow in oz/min, whether it is single or two-speed, hose length, air-bleeder valve, follower type, and cartridge versus bulk fill. Then check which battery platform you already own. Most buyers overthink spec sheets and underthink platform, which is the real cost driver.

Sources

• https://www.milwaukeetool.com/products/details/m18-cordless-2-speed-grease-gun/2646-20
• https://www.milwaukeetool.com/products/details/m12-cordless-lithium-ion-grease-gun-kit/2446-21xc
• https://www.dewalt.com/product/dcgg571m1/20v-max-grease-gun-kit
• https://www.ryobitools.com/products/details/33287177301
• https://makitatools.com/products/details/XPG01Z
• https://www.protoolreviews.com/makita-cordless-grease-gun-review/
• https://www.northerntool.com/products/lincoln-powerluber-cordless-grease-gun-kit-20v-10-000-psi-2-batteries-model-1884-48663
• https://www.metabo.com/us/enus/tools/cordless-tools/other-cordless-tools/cordless-grease-guns/fp-18-ltx-600789850-cordless-grease-gun.html
• https://www.harborfreight.com/20v-cordless-variable-speed-grease-gun-tool-only-58608.html

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