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If you’re staring at three Milwaukee compact cutters wondering which one actually fits your work, I get it. The M12 FUEL 3″ cut-off tool (2522-21XC kit) brings 24V muscle with a 4Ah battery, the 2522-20 is a bare 12V angled cutter, and the 2627-20 is an M18 spiral saw spinning at 28,000 RPM.
This comparison is for anyone who cuts metal, drywall, or tile and doesn’t want to buy the wrong tool twice. The real trade-off is raw cutting speed versus one-handed maneuverability versus sheer portability — and I’ve broken down exactly who should pick which.
🏆 Quick Picks — My Top Recommendations
Best Overall: Milwaukee M12 FUEL 2522-21XC
24V power with a 4Ah battery and 20,000 RPM — the only one here that’s a complete kit — Check Price →
Runner-Up: Milwaukee 2522-20
12V angled design with reversible blade rotation and 2.1 lbs weight — best one-handed — Check Price →
Best for Drywall: Milwaukee 2627-20
M18 spiral saw with 28,000 RPM speed and 3.15″ blade — built for fast cutouts — Check Price →
Here’s how the Milwaukee M12 FUEL 3″ Compact Cut Off Tool Kit (2522-21XC), the 2522-20 bare 12V tool, and the 2627-20 M18 cut out tool stack up side-by-side on the specs that actually matter.
Full Specs Comparison
| Specification | Milwaukee M12 FUEL 3″ Com | Milwaukee’s Cut-Off Tool | MILWAUKEE’S 2627-20 M18 1 |
|---|---|---|---|
| Voltage | ✅ 24V | 12V | 18V |
| Battery Type | ✅ Lithium | — | — |
| Battery Capacity | ✅ 4Ah | — | — |
| Amperage | ✅ 4A | — | — |
| Max Rotational Speed | ✅ 20000 rpm | — | — |
| Chuck Size | ✅ 3″ | — | — |
| Power Source | Battery Powered | Battery Powered | Cordless |
| Number of Batteries | ✅ 1 | — | — |
| Material | — | ✅ Metal, Plastic | — |
| Dimensions | — | ✅ 8.9″L x 6.9″W x 4.5″H | — |
| Style | — | ✅ Angled | — |
| Blade Material | — | — | ✅ High Speed Steel |
| Surface Recommendation | — | — | ✅ Wood |
| Motor Type | — | Brushless | ✅ 4-pole |
| Reversible Blade | — | ✅ Yes | — |
The biggest spec gap I see is speed: the 2627-20 spins at 28,000 RPM while the M12 FUEL tops out at 20,000 RPM — but the M12 FUEL brings a 24V/4Ah battery kit that the others don’t include.
Individual Product Breakdown
I spent time looking at each of these Milwaukee cutters — checking the real specs, reading what actual buyers said, and thinking about which jobs each one handles best. Here’s my honest take on all three.
Milwaukee M12 FUEL 3″ Compact Cut Off Tool Kit – 24V
24V | 4Ah battery | 4A | 20,000 RPM | 3″ max chuck size
This is the only one of the three that comes as a full kit — you get the XC 4.0 Extended Capacity battery and a charger right in the box, which saves you money and hassle. The 24V system gives it noticeably more grunt than the 12V 2522-20, and the 20,000 RPM max speed handles metal cutting with confidence. The 3″ max chuck size means you’re limited to smaller wheels, so don’t expect to rip through thick stock. It’s rated 4.7 stars from 431 buyers, and I think it’s the best pick if you’re starting fresh with M12 tools or need something that just works out of the box.
✅ Pros
- Complete kit — includes 4Ah battery and charger
- 24V power delivers serious cutting force
- 20,000 RPM max speed for clean cuts
- 4.7-star rating from 431 reviews
❌ Cons
- 3″ max chuck size limits wheel diameter
- Heavier than the bare 12V option
Milwaukee 2522-20 M12 FUEL 3″ Compact Cut-Off Tool (Bare Tool)
12V | Bare tool | 2.1 lbs | Angled design | Reversible blade rotation
- Reversible blade rotation for ultimate cutting control
- Powerstate Brushless Motor delivers maximum power and long motor life
- Redlink Plus intelligence provides optimized performance and overload...
If you already own M12 batteries, this bare tool is a smart budget move — it’s just the tool, so you save money upfront. The 12V system is less powerful than the 24V kit, but the angled design and 2.1-pound weight make it the easiest to handle one-handed. The reversible blade rotation is a genuinely useful feature for cutting in tight corners or awkward positions. It’s got a 4.6-star rating from over 3,152 reviews, and buyers clearly love the ergonomics. The trade-off is battery life — you’ll want a few spares if you’re doing serious cutting sessions.
✅ Pros
- Extremely lightweight at just 2.1 lbs
- Reversible blade rotation for better control
- 4.6-star rating from 3,152 reviews
- Angled grip is perfect for one-handed use
❌ Cons
- Bare tool — no battery or charger included
- 12V system lacks the power of the 24V kit
Milwaukee 2627-20 M18 18-Volt Lithium-Ion Cordless Cut Out Tool (Bare Tool)
18V | Bare tool | 28,000 RPM | 3.15″ blade | 1.9 lbs | Wood/drywall
- Compact spiral saw with 4-pole motor delivers fast cuts
- The product is manufactured in China
- Red link Intelligence provides overload protection to defend against...
This one’s totally different from the other two — it’s a spiral saw built specifically for drywall and wood cutouts, not metal cutting. The 28,000 RPM speed is the fastest of the three by a mile, and the 3.15″ blade length means you can plunge into drywall without tearing the paper. At 1.9 pounds it’s also the lightest option here, which makes overhead work a breeze. It’s an Amazon’s Choice pick with a 4.7-star rating from 1,256 buyers. The catch is it’s a bare tool — you’ll need an M18 battery and charger, and it’s not meant for metal at all.
✅ Pros
- Blazing 28,000 RPM speed for fast cutouts
- Lightest at just 1.9 lbs
- 3.15″ blade length ideal for drywall
- Amazon’s Choice with 4.7-star rating
❌ Cons
- Bare tool — M18 battery and charger sold separately
- Not designed for metal cutting at all
Which One Should You Buy?
Honestly, there’s no universal winner here — the right pick depends on what you’re cutting and which battery platform you’re already invested in. Let me break down exactly who should grab each one.
Milwaukee M12 FUEL 3″ Compact Cut Off Tool Kit is right for you if…
- You’re starting fresh with M12 tools and want everything in one box — the 4Ah battery and charger are included.
- You need 24V power for cutting metal or rebar and want the 20,000 RPM max speed to handle tougher materials.
- You want the security of a 4.7-star rating from 431 buyers and don’t mind a slightly heavier tool for the extra torque.
Milwaukee 2522-20 M12 FUEL Cut-Off Tool is right for you if…
- You already own M12 batteries and want to save money by buying just the bare tool.
- You do tight, awkward cuts where the angled design and reversible blade rotation give you better one-handed control.
- You prioritize portability — at just 2.1 lbs, it’s easy to carry all day on a job site.
Milwaukee 2627-20 M18 Cut Out Tool is right for you if…
- You’re a drywall finisher or carpenter who needs fast, clean cutouts — the 28,000 RPM speed is unbeatable for this.
- You’re already on the M18 platform and want a lightweight 1.9 lb tool for overhead work.
- You need the 3.15″ blade length to plunge into drywall or wood without damaging the surface.
❌ Who Should Skip All of These?
If you’re doing heavy metal fabrication or cutting thick steel plate, none of these will cut it — you need a proper angle grinder or a chop saw with a bigger wheel. These are all compact, specialty cutters for light-to-medium work, not industrial-grade tools.
For most buyers, I’d say the Milwaukee M12 FUEL 3″ Compact Cut Off Tool Kit is the smartest all-around choice — it’s the only one that comes ready to work with a battery and charger, and the 24V power gives you the most versatility for metal cutting. Unless you’re specifically doing drywall, in which case the 2627-20’s 28,000 RPM speed makes it the obvious winner.
Frequently Asked Questions
Which is better for cutting metal: the M12 FUEL or the 2522-20?
The M12 FUEL 3″ Compact Cut Off Tool Kit is the clear winner for metal. It runs at 24V with a 4Ah battery, giving you noticeably more torque than the 12V 2522-20. The 2522-20’s 12V system will struggle on thicker metal and drains batteries faster, so I’d only pick it if you’re doing light, occasional cuts.
Is the M12 FUEL worth the extra money over the bare 2522-20?
That depends on whether you already own M12 batteries. If you’re starting from scratch, absolutely — the M12 FUEL kit includes the XC 4.0 Extended Capacity battery and a charger, so you don’t have to buy those separately. If you already have a drawer full of M12 batteries, grab the bare 2522-20 and save the cash, since the 12V system will handle most light cutting jobs fine.
Can the 2627-20 cut metal, or is it only for drywall?
The 2627-20 is really not meant for metal — it’s a spiral saw designed for drywall and wood cutouts. The 28,000 RPM speed and 3.15″ blade length are perfect for plunging into drywall, but the blade type and surface recommendation (wood only) mean you’ll ruin it quickly on metal. If metal is your main job, get the M12 FUEL instead.
Which tool is lighter and easier to use one-handed?
The 2627-20 is the lightest at just 1.9 lbs, making it the easiest for overhead drywall work. But for one-handed cutting control on metal, I’d go with the 2522-20 — its angled design and 2.1 lb weight make it really comfortable to grip and maneuver in tight spots. The M12 FUEL is heavier and bulkier, so it’s not my first pick for extended one-handed use.
Do any of these tools come with a battery and charger?
Only one — the M12 FUEL 3″ Compact Cut Off Tool Kit includes the XC 4.0 Extended Capacity battery and a charger right in the box. Both the 2522-20 and the 2627-20 are bare tools, meaning you’ll need to supply your own M12 or M18 batteries and charger. That’s a big factor if you’re just getting into the Milwaukee ecosystem.
Which one has the best reviews from real buyers?
The 2522-20 has the most reviews by far — over 3,152 ratings with a 4.6-star average. The M12 FUEL kit and the 2627-20 both sit at 4.7 stars, but with fewer reviews (431 and 1,256 respectively). All three are well-liked, but the 2522-20’s massive review count tells me it’s the most proven workhorse of the bunch.
My Final Verdict
The Milwaukee M12 FUEL 3″ Compact Cut Off Tool Kit is my clear winner — it’s the only one that comes ready to work with a 4Ah battery and charger included, and the 24V system with 20,000 RPM gives you the most power for metal cutting. The 2627-20 is the runner-up, but only if drywall cutouts are your primary job — its 28,000 RPM speed and 1.9 lb weight make it unbeatable for that specific task.
If you’re still on the fence, ask yourself one question: what are you cutting most? Metal or general cutting means the M12 FUEL is your tool. Drywall and wood means the 2627-20 wins. The 2522-20 only makes sense if you already own M12 batteries and want the lightest, most maneuverable option at 2.1 lbs.
Best Overall: Milwaukee M12 FUEL 3″ Compact Cut Off Tool Kit
This is the complete package — 24V power, 4Ah battery, and charger all in one box. Perfect for anyone who wants a versatile metal-cutting tool without buying extras separately.
Runner-Up: Milwaukee 2627-20 M18 Cut Out Tool
- Compact spiral saw with 4-pole motor delivers fast cuts
- The product is manufactured in China
- Red link Intelligence provides overload protection to defend against...
The drywall specialist — 28,000 RPM and a 3.15″ blade make it lightning fast for cutouts. Best for carpenters and drywall finishers who already own M18 batteries.
Best Budget Pick: Milwaukee 2522-20 Cut-Off Tool
- Reversible blade rotation for ultimate cutting control
- Powerstate Brushless Motor delivers maximum power and long motor life
- Redlink Plus intelligence provides optimized performance and overload...
The smart money move if you already have M12 batteries — just 2.1 lbs with an angled grip and reversible blade rotation for great one-handed control.
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