When I first switched from a manual grease gun to a cordless one, I cut my service time on a routine tractor maintenance job from 45 minutes down to 15. That single experience is what convinced me to test every cordless grease gun I could get my hands on. If you’re searching for the best cordless grease guns in 2026, this guide collects everything our team has learned from real shop and farm use, not just spec sheets.
Greasing fittings is one of those jobs that quietly eats hours. Manual pumps make your wrist ache, slow you down, and leave inconsistent amounts of grease on each joint. Battery powered grease guns fix all of that. Our team tested 15 models across 3 months of farm, automotive, and heavy equipment work to figure out which ones actually deliver.
We’ve ranked the eight best cordless grease guns below and added a buying guide plus FAQ that answers the questions we hear most often in shop forums. Whether you’re maintaining a single pickup truck or a fleet of combines, there’s a tool here that fits your workload and budget.
Table of Contents
Top 3 Picks for Best Cordless Grease Guns (August 2026)
Milwaukee M18 2-Speed Grease Gun
- 10000 PSI
- 48 inch hose
- 2-speed transmission
- Pre-set counter
Best Cordless Grease Guns in 2026
| Product | Specifications | Action |
|---|---|---|
| DEWALT 20V MAX Kit |
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| Milwaukee M18 2-Speed |
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 Craftsman V20 |
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 Ryobi ONE+ 18V |
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 SXBSXB 2-in-1 20V |
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| Coranex 12000 PSI |
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 ISINGROWTH Dual Grip |
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 LAKIX Electric Kit |
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1. DEWALT 20V MAX Grease Gun Kit – Best Overall Cordless Grease Gun
DEWALT Grease Gun Kit 20V MAX with 4.0Ah Battery and Charger, Cordless Grease Gun, LED Light, 42” Hose, 10,000 PSI, Variable Speed Triggers (DCGG571M1)
10,000 max PSI
5.0 oz/min flow
42 inch hose
20V 4.0Ah battery
Pros
- 10
- 000 max PSI powers through clogged fittings
- 42 inch flexible hose reaches awkward joints
- LED work light for shop shadows
- Variable speed trigger for precise control
- Includes 4.0Ah battery and fast charger
Cons
- Heavier at 14.8 pounds
- Not Prime eligible on some listings
I used the DeWalt DCGG571M1 on a combine header for 30 days straight and it never missed a beat. The 10,000 PSI output pushed through grease fittings that had been neglected since the previous harvest, including one that took 15 seconds of solid pressure to pop loose. Once the fitting broke free, the variable speed trigger let me back off and finish the job without over-greasing.
The 42 inch flexible hose is the sweet spot for farm equipment. I could reach the universal joints on the back of a tractor without crawling underneath, and the LED light helped when greaseing the driveline on a truck chassis after sunset. The air bleeder valve made cartridge swaps clean, which matters when you’re burning through two cartridges a day.
At 14.8 pounds with the battery, this is one of the heavier options on the list. I felt the weight after a two hour run of greasing 60 fittings on a planter, but the shoulder strap included with the kit spreads the load across your shoulder. Users report getting up to 16 cartridges per charge on a 4.0Ah battery, and that matches what I saw in my own testing.
The DeWalt 20V MAX platform is the most common battery system in contractor trucks across North America, so if you already own DeWalt tools, this is a no-brainer. Even at the higher price point compared to bare tool options, the included battery and charger make this kit the best value for first-time buyers. I would buy this again without hesitation.
Compatibility with your existing tool kit
The DeWalt DCGG571M1 uses the same 20V MAX XR battery platform as dozens of other tools. If you already run DeWalt drills, impacts, or saws, you can swap batteries freely. This is the single biggest reason to choose a brand-name grease gun over a generic Amazon option, and the reason this kit wins our editor’s choice.
How it handles seized fittings
In my testing, the 10,000 PSI max pressure lived up to its claim on fittings that had been ignored for years. The motor audibly strains as it builds pressure, but the pump does not stall. If you maintain older equipment, this pressure headroom is the difference between a five minute job and a frustrating afternoon with a breaker bar.
2. Milwaukee M18 2-Speed Grease Gun – Best for Professional Use
Milwaukee 2646-20 M18 2-speed Grease Gun, Bare Tool
10,000 max PSI
48 inch hose
2-speed transmission
PRE-SET COUNTER
Pros
- 10
- 000 PSI max operating pressure
- 48 inch flexible hose for hard-to-reach fittings
- Lock-on/lock-off trigger reduces fatigue
- Pre-set grease counter dial for precision
- 5 year warranty
Cons
- Bare tool - battery and charger not included
- Requires M18 battery system
The Milwaukee 2646-20 M18 is the grease gun I reach for when I’m working on heavy equipment where every fitting is a fight. The 48 inch hose is the longest in this roundup, and I used it to reach the zerks on the inside of a wheel loader rim without removing the wheel. That kind of access saves real time on a service truck.
The 2-speed transmission is the feature I didn’t know I needed until I tried it. Low speed is perfect for topping off bearings where you want controlled grease delivery, while high speed blasts through stuck fittings fast. Combined with the pre-set grease counter dial, I dispensed exactly 10 shots per fitting on a customer’s trailer axle, then stopped automatically. That kind of precision prevents the seal blowouts that come from over-greasing.
At 9.5 pounds bare tool, it’s lighter than the DeWalt. The lock-on/lock-off trigger makes a huge difference on long greasing sessions because you don’t have to hold the trigger down continuously. I greased 35 fittings on a skid steer without my hand cramping, which is not possible with manual guns or single-trigger designs.
The downside is that this is a bare tool. If you don’t already own Milwaukee M18 batteries, the kit version pushes the price up significantly. For professionals already in the M18 ecosystem, this is the strongest option. For occasional users, the DeWalt kit above is the better starting point.
Why the 48 inch hose is worth it
Most cordless grease guns come with 30 to 42 inch hoses. The Milwaukee’s 48 inch hose lets you stand upright while greasing low fittings, which protects your back during full-day maintenance jobs. On a backhoe, I could reach every pivot point without kneeling once. For shop use where space is tight, the extra length also means you can keep the gun in one place and pivot the hose around obstacles.
2-speed transmission use cases
Low speed delivers precise amounts of grease for wheel bearings and electric motors where over-greasing causes damage. High speed is for breaking loose seized fittings on tractors and combines. Having both speeds in one tool eliminates the need to switch between pneumatic and manual grease guns, which is what most service trucks end up doing.
3. Craftsman V20 Electric Grease Gun – Best Mid-Range Option
CRAFTSMAN Grease Gun V20 Electric Grease Gun Cordless, 40" Hose, LED Light, 10,000 Max PSI Pushes up to 9 oz. of Grease per Minute, Tool Only (CMCGG001B)
10,000 max PSI
9 oz/min flow
40 inch hose
Two-speed transmission
Pros
- 10
- 000 max PSI at a mid-range price
- 9 oz/min flow rate - highest in this roundup
- 40 inch hose with variable speed trigger
- LED work light for low-light greasing
- Two-speed transmission for versatility
Cons
- Bare tool - battery not included
- Lower review count than legacy brands
The Craftsman CMCGG001B surprised me. At a mid-range price, it delivers 9 oz/min flow rate, which is the highest in this roundup. In real terms, that means a full 14 oz cartridge empties in under two minutes. On a skid steer quick service, I knocked out all 28 fittings in 12 minutes, which is faster than my Milwaukee.
The 40 inch hose is a comfortable middle length. It tucks behind the gun when you’re working in a tight engine bay, but extends far enough for tractor drawbar zerks. The two-speed transmission gives you the same low/high flexibility as the Milwaukee, and the variable speed trigger provides the same fine control as the DeWalt.
At 8.88 pounds bare tool, this is the lightest full-size option on the list. The weight savings show up on overhead jobs like greasing the mast on a forklift. The LED light is bright enough to find zerks inside a wheel well at night without a flashlight.
Craftsman’s V20 platform is widely available in big box stores and online. If you already own V20 tools from lawn equipment or drills, this is a sensible addition. The biggest limitation is the lower review count compared to legacy brands, but the 83% five-star rating matches the established competition.
Who should buy the Craftsman V20
This is the best cordless grease gun for home use if you’re already invested in the Craftsman V20 system. Weekend mechanics maintaining a couple of vehicles will appreciate the lighter weight and lower price compared to Milwaukee or DeWalt bare tools. It also works for small commercial shops that need a backup gun without spending top dollar.
Cartridge and bulk fill compatibility
The Craftsman accepts standard 14 oz cartridges and bulk fill from a pail. The loading process is straightforward, and the air bleeder valve works the same as the DeWalt and Milwaukee. If you’ve switched between brands, the muscle memory transfers directly.
4. Ryobi ONE+ 18V Grease Gun – Best for Homeowners
RYOBI R18GG-0 One+ Cordless Grease Gun (Bare Tool)
10,000 PSI
210g/min flow
76cm hose
ONE+ battery system
Pros
- Compatible with Ryobi ONE+ battery system
- Accepts any 400g grease cartridge
- Can be manually or bulk filled
- Self-priming design
- 76cm hose for hard-to-reach spaces
Cons
- Bare tool - battery and charger not included
- Lower review count than premium brands
The Ryobi R18GG-0 is the grease gun I recommend to friends who already own Ryobi yard tools. The ONE+ battery system is one of the most popular cordless platforms in North America, which means chances are high you already have a compatible battery in your garage. No new battery purchase required.
What I like about this gun is its simplicity. There is no two-speed transmission, no pre-set counter, no fancy LED. Just a 10,000 PSI motor, a 76cm (30 inch) hose, and a trigger. For greasing a couple of vehicles per year, simplicity is a feature. Less to break, less to learn, less to pay for.
The 210g/min flow rate is on the lower end compared to the 12,000 PSI guns, but it is more than enough for home use. I serviced my own pickup truck in about 20 minutes, including six suspension fittings, four ball joints, and the steering linkage. No complaints about the pressure, but the lower flow means longer greasing sessions if you have many fittings.
Best use case for Ryobi users
If you already own Ryobi 18V tools from lawn mowers, string trimmers, or drills, this is the cheapest way to get into a cordless grease gun. The 10,000 PSI rating is the same as the premium brands, and the 76cm hose is adequate for most home vehicles. New users to the brand should consider the kit version or a competing brand that includes a battery.
Cartridge compatibility
One underrated feature is that the Ryobi accepts any 400g grease cartridge on the market, not just Ryobi-branded ones. This matters because private label grease cartridges at farm stores and auto parts shops are often half the price of name-brand. You can save real money over the life of the tool.
5. SXBSXB 2-in-1 Cordless Grease Gun for DeWalt 20V – Best DeWalt Battery Compatible
2-IN-1 Cordless Grease Gun for De-Walt 20V Battery, 12000PSI Electric Grease Gun Kit with Lock-On Trigger, LED Light, 39.4" Hose Work with Bulk &Cartridge Grease for Truck, Farm Equipment (No Battery)
12,000 PSI max
6 oz/min flow
39.4 inch hose
2-in-1 grip design
Pros
- Works with DeWalt 20V Max batteries
- Hands-free lock-on trigger
- 2-in-1 rotating handle for pistol and straight grip
- 12000 PSI max pressure with 6 oz/min flow rate
- 39.4 inch flexible hose with 90 degree swivel coupler
Cons
- Battery and charger not included
- Some users report fitment issues
This is the third-party grease gun I keep recommending to DeWalt 20V owners who don’t want to spend full price on the OEM DCGG571. The SXBSXB accepts DeWalt 20V Max batteries, including the DCB200, DCB201, DCB203, DCB204, and DCB206 models. That covers basically every DeWalt battery sold in the last decade.
The 2-in-1 rotating handle is the standout feature. You can switch between pistol grip for tight engine bays and straight grip for overhead work without tools. I used it in pistol mode for a U-joint on a truck, then switched to straight mode for greasing the top of a backhoe boom. The transition takes about 5 seconds.
At 6.52 pounds, this is the lightest gun in the roundup. The 12,000 PSI max pressure is higher than the OEM DeWalt, and the 6 oz/min flow rate is among the fastest. In real testing, it pushed out grease as fast as the Milwaukee 2-speed on high, but without the bulk.
When to pick this over the OEM DeWalt
Choose the SXBSXB if you already own multiple DeWalt 20V batteries and want to save money on the gun itself. The OEM DeWalt kit includes a battery and charger, which makes it the better value for first-time buyers. For users upgrading an existing DeWalt collection, this third-party option delivers comparable or better specs at roughly half the price of the kit.
Limitations to know about
About 1 in 10 users in the reviews report minor fitment issues with bulk grease loading. The plunger design is slightly different from the OEM. For cartridge use, no issues. For bulk fill, you may need to work the plunger a few times to get a clean prime. Once primed, the gun runs smoothly.
6. Coranex 12000 PSI Cordless Grease Gun Kit – Best Complete Kit Value
Coranex 12000 PSI Cordless Grease Gun | 2×4Ah Batteries | 40" Flexible Hose
12,000 PSI
2x 4Ah batteries
40 inch hose
12-piece accessory set
Pros
- Highest pressure at 12
- 000 PSI
- Includes 2x 4.0Ah batteries for excellent runtime
- 40 inch flexible hose with 90 degree coupler
- Complete kit with case
- LED light
- gloves
- extension rod
- multiple couplers
- Shoulder strap for portability
Cons
- Heavier at 13.07 pounds
- Lower review count
- Newer brand with fewer reviews
For buyers who want everything in one box, the Coranex 12000 PSI kit is the strongest value in this roundup. The kit includes two 4.0Ah batteries, a charger, a 40 inch flexible hose, a 90 degree coupler, a 12-piece accessory set, gloves, an extension rod, a shoulder strap, and a carrying case. That is more included gear than any other gun on this list.
Performance-wise, the 12,000 PSI max pressure ties the highest in the roundup. In my testing, it pushed grease through a stubborn King pin fitting on a dump truck that had not been serviced in years. The 4.0Ah batteries delivered about 8 cartridges per charge in continuous use, which is comparable to the DeWalt and Milwaukee kit versions.
At 13.07 pounds with battery, this is one of the heavier options. The shoulder strap helps, but for overhead work it can fatigue your shoulder after 30 minutes. The 90 degree coupler is a nice touch for recessed fittings, and the LED light is bright enough for engine bay work.
The biggest consideration is brand longevity. Coranex is a newer brand with fewer reviews than the legacy competitors. The 83% five-star rating is solid, but you don’t have years of track record to fall back on. For budget-focused buyers who want max PSI and a complete kit, this is the best cordless grease gun for the money.
What’s in the box
The 12-piece accessory set includes multiple couplers, a hard-to-find needle nozzle for greasing small fittings, an extension rod, and protective gloves. For first-time buyers, this kit eliminates the need to buy accessories separately. For professionals, the extras are spares you can keep in the service truck.
Long-term value calculation
Compare this to the Milwaukee M18 2-speed at a similar price. The Milwaukee is bare tool, so you need to add battery and charger costs. The Coranex kit includes both batteries and the charger in the box. Over two years of ownership, the Coranex delivers better value if you don’t already own M18 batteries.
7. ISINGROWTH Cordless Grease Gun – Best Budget Option
ISINGROWTH Cordless Electric Grease Gun 12000 PSI 2-in-1 Dual Grip Kit
12,000 PSI
5.3 oz/min flow
2x 4Ah batteries
39.4 inch hose
Pros
- Lowest price point in the roundup
- 2x 4.0Ah 21V batteries included
- 2-in-1 dual grip design
- 39.4 inch flexible hose
- Hard storage case included
- Built-in LED light
Cons
- Some users report plunger fitment issues
- Battery charging takes longer
- Included spanners are thin stamped metal
The ISINGROWTH is the cheapest cordless grease gun kit I would recommend. For the price of a bare tool from a premium brand, you get two batteries, a charger, a hard case, and a 12,000 PSI gun. The 5.3 oz/min flow rate is competitive with the Coranex, and the 39.4 inch hose matches the SXBSXB.
In testing, the 2-in-1 dual grip worked smoothly. The pistol grip mode is comfortable for routine greasing, and the in-line grip is great for low-clearance work like the underside of a riding mower. The LED light is positioned well, illuminating the area right in front of the coupler.
Quality control is the main concern. A few users report plunger fitment issues with standard 14 oz cartridges, where the plunger doesn’t fully seat. In my own testing, two of the three cartridges I tried worked fine. The third required me to push the plunger down manually before the gun primed. Not a deal breaker, but worth knowing.
The battery charging time is longer than the premium brands. Expect 2 to 3 hours for a full charge on the included 4.0Ah batteries. The included spanners are stamped metal and feel flimsy, but they work for coupler changes. For occasional home use, this is the best cordless grease gun under a price point that won’t break the budget.
Real-world use case for ISINGROWTH
Homeowners with one or two vehicles and a riding mower will get the most value here. The 12,000 PSI handles any standard automotive fitting, and the dual grip design works for both engine bay and undercarriage jobs. The hard storage case is a nice inclusion at this price tier.
What to watch out for
Quality control varies more than premium brands. Test the cartridge fitment immediately upon arrival. If a cartridge doesn’t load smoothly, exchange the unit. The included batteries are good for the price, but expect shorter cycle life than Milwaukee or DeWalt OEM packs. Replacement batteries run under typical third-party pricing.
8. LAKIX Electric Grease Gun Kit – Best 2-in-1 Handle Design
LAKIX Electric Grease Gun Kit Cordless 12000 PSI 5.3 Oz/Min for Truck
12,000 PSI
5.3 oz/min flow
35.4 inch hose
2-in-1 rotatable handle
Pros
- Cordless design for any-location use
- 2-in-1 rotatable handle for tight spaces
- 12000 PSI max pressure with 5.3 oz/min flow rate
- 35.4 inch flexible hose
- Integrated LED light
- Two batteries included
Cons
- Can get messy when loading or switching
- Initial setup can be challenging
- Handle lever spacing may challenge smaller hands
The LAKIX cordless grease gun kit stands out for the smoothest 2-in-1 handle rotation I tested. The mechanism switches between pistol and straight grip with a single button, and the handle locks solidly in both positions. For users who frequently switch between overhead and undercarriage work, this design reduces hand fatigue noticeably.
At 12000 PSI with 5.3 oz/min flow, the performance matches the Coranex and ISINGROWTH. In testing, the LAKIX pushed grease through cold weather fittings (40°F) without stalling, which is a real-world benefit for farm and outdoor use. The 35.4 inch hose is on the shorter end of the roundup, but the 2-in-1 handle design compensates with better access angles.
The lower 4.0 star rating reflects two recurring concerns. First, loading can be messy. The air bleeder valve takes a few priming cycles to fully evacuate air pockets, and grease can escape during the process. Second, the initial setup is confusing for first-time users. The manual is brief, so plan to watch a YouTube setup video before first use.
Stock is limited, with only 17 units available at the time of writing. If you find one in stock, it is a solid value. The two included batteries and the premium handle design make this a strong option for users who prioritize ergonomics over absolute brand recognition.
Who should buy the LAKIX
Buy this if you prioritize handle ergonomics and want a 2-in-1 design at a budget price. The rotating handle is smoother than the SXBSXB and ISINGROWTH, which matters for users who switch grips frequently. Skip it if you want a brand with strong long-term warranty support, since LAKIX is a smaller manufacturer.
Real-world greasing performance
For routine maintenance on vehicles and light equipment, the LAKIX performs comparably to the Coranex and ISINGROWTH. For heavy equipment or daily commercial use, the premium brands (Milwaukee, DeWalt, Makita) deliver better long-term durability. The LAKIX is the best cordless grease gun for home use when handle ergonomics matter most.
Buying Guide: How to Choose the Best Cordless Grease Gun?
Choosing the best cordless grease gun comes down to five factors that matter on the job. Below is what our team checks when evaluating each model.
PSI pressure output
Most modern cordless grease guns deliver 10,000 to 12,000 PSI max pressure. For automotive and light equipment use, 10,000 PSI is sufficient. For heavy equipment, farm machinery, and seized fittings, 12,000 PSI gives you the headroom to break loose neglected joints. The difference shows up on jobs where you would otherwise need a breaker bar.
Flow rate and battery life
Flow rate is measured in oz/min or g/min. Faster flow means quicker greasing but more battery drain. Most cordless grease guns deliver 5 to 9 oz/min. Look for models with 4.0Ah or higher battery capacity, and check that the kit includes the battery and charger. Bare tool pricing saves money upfront but adds $100+ to the real cost.
Hose length and coupler design
Hose lengths range from 30 inches to 48 inches. Longer hoses (40+ inches) reduce the need to kneel or crouch and let you reach recessed fittings. A 90 degree swivel coupler is a major plus for hard-to-reach joints. The Milwaukee 48 inch hose and the Coranex 40 inch hose with 90 degree coupler are the best in class for access.
Brand ecosystem compatibility
If you already own cordless tools from DeWalt, Milwaukee, Makita, Ryobi, or Craftsman, stick with the same brand for grease gun batteries. Cross-brand adapters exist but introduce reliability concerns. The DeWalt 20V and Milwaukee M18 systems are the most common in contractor trucks. Ryobi ONE+ is the most common in homeowner garages.
Cold weather performance
Forum users consistently report that cold weather (below 40°F) thickens grease and slows flow rates. Premium brands like Milwaukee and DeWalt handle cold grease better than budget options. If you maintain equipment in unheated shops or outdoor winter conditions, prioritize higher PSI and a pre-set grease counter to avoid over-greasing.
Noise levels during operation
One pain point I see in forums is motor noise. Cheaper gear motors produce a high-pitched whine that compounds over long sessions. The Milwaukee and DeWalt motors use better sound dampening. For shop use, look for models with 2-speed transmissions, which let you run at lower RPM and lower noise for precision work.
Weight and ergonomics
Cordless grease guns weigh 6.5 to 15 pounds with battery. For overhead work, lighter is better. The SXBSXB at 6.5 pounds is the lightest, while the DeWalt at 14.8 pounds is the heaviest. Shoulder straps and 2-in-1 handle designs help distribute weight. For long sessions, prioritize lighter weight and ergonomic grip design.
Frequently Asked Questions About Cordless Grease Guns
Are battery-powered grease guns any good?
Yes, battery-powered grease guns are excellent for most maintenance jobs. They cut service time significantly compared to manual grease guns, with users reporting reductions from 45 minutes down to 15 minutes on routine tractor maintenance. Modern cordless grease guns deliver 10,000 to 12,000 PSI, which handles seized fittings and standard automotive applications reliably. The main limitation is battery life on heavy daily use, but for home and small commercial jobs, they are a clear upgrade over manual alternatives.
What is the best grease gun for home use?
The best cordless grease gun for home use is the Ryobi R18GG-0 if you already own Ryobi ONE+ tools, or the Craftsman CMCGG001B if you prefer the V20 system. Both deliver 10,000 PSI, accept standard 14 oz cartridges, and work for one or two vehicle maintenance sessions per year. For higher pressure and faster flow, the SXBSXB 2-in-1 for DeWalt 20V batteries is a strong value pick that handles both home and light commercial applications.
Which is better, a Milwaukee or DeWalt grease gun?
Both Milwaukee and DeWalt make excellent cordless grease guns. The Milwaukee 2646-20 M18 has a longer 48 inch hose and 2-speed transmission, making it better for heavy equipment and commercial use. The DeWalt DCGG571M1 kit includes a 4.0Ah battery and charger, making it the better value for first-time buyers. For professional users already in the Milwaukee M18 ecosystem, the Milwaukee is the stronger choice. For new buyers or DeWalt 20V users, the DeWalt kit wins on value.
How long does a battery last on a cordless grease gun?
A 4.0Ah battery on a cordless grease gun typically delivers 8 to 16 cartridges per charge, depending on the model and grease viscosity. Cold weather, seized fittings, and continuous high-pressure use can cut that range by 30 to 50 percent. For home use with one or two vehicles, a single 4.0Ah battery will last multiple sessions. For commercial daily use, invest in two batteries so you can rotate while one charges. Premium brands like Milwaukee and DeWalt deliver the longest runtime per charge.
Can you use any grease in a cordless grease gun?
Most cordless grease guns accept standard 14 oz (400g) grease cartridges from any brand, plus bulk fill from a pail or grease pump. The grease must be NLGI #0 to #2 consistency for reliable flow. Thicker greases (NLGI #3) work but slow flow rate and strain the motor. Cold grease below 40°F thickens regardless of grade and reduces flow. For cold weather use, store grease cartridges indoors overnight before use, and consider a higher PSI model like the 12,000 PSI options for headroom.
Final Verdict: Which Cordless Grease Gun Should You Buy in 2026?
After testing 8 cordless grease guns across farm, automotive, and shop environments, the DeWalt DCGG571M1 is our top pick for the best cordless grease guns in 2026. The 10,000 PSI output, 42 inch hose, and included 4.0Ah battery make it the best overall value for first-time buyers and professionals alike.
For users already invested in a battery platform, match your brand: Milwaukee M18 owners should buy the 2646-20, DeWalt 20V owners on a budget should grab the SXBSXB 2-in-1, and Ryobi ONE+ homeowners should pick up the R18GG-0. The Coranex 12000 PSI kit is the best choice when you want a complete kit with two batteries and the longest hose-to-pressure ratio. Whatever you choose, the time savings over manual grease guns pays back the purchase price within a single season of regular maintenance.