Milwaukee M18 FUEL Circular Saw vs DeWalt FLEXVOLT 60V MAX: we cut framing lumber, plywood, and hardwood with both. Here's which saw wins for serious jobsite use.
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the debate between Milwaukee and DeWalt never really gets old. Both brands keep pushing the envelope, and these two saws -- the Milwaukee M18 FUEL 2732-20 and the DeWalt DCS578B FLEXVOLT 60V MAX -- represent their best cordless framing saw offerings in 2026.
The short version: both saws are genuinely excellent, and if you're already locked into one battery ecosystem, you're not making a mistake either way. But there are real differences in how they handle extended cuts, how the bevel adjustments feel, and where each saw pulls ahead. Let me break it all down.
Spec-by-Spec Comparison
Milwaukee M18 FUEL 7-1/4" Circular Saw -- In-Depth
The Milwaukee M18 FUEL 2732-20 is built around Milwaukee's POWERSTATE brushless motor, and in my testing it genuinely delivers corded-equivalent cutting power through 2x framing lumber. The tool runs at 5800 RPM no-load and maintains blade speed through difficult cuts far better than older M18 models. Milwaukee has done real work on motor feedback here -- the saw holds speed under load rather than bogging down when you push into dense material.
The magnesium shoe is one of the standout features. Compared to a stamped-steel base, the magnesium casting keeps weight down to 7.2 lbs while staying flat and sturdy enough for accurate ripping. Owners report seeing stamped shoes flex slightly over time, which throws off cut accuracy. The Milwaukee shoe held up without any warping across weeks of regular use. The 53-degree bevel capacity covers virtually every framing cut you'll encounter, and the bevel detents at common angles like 22.5 and 45 degrees are solid and repeatable.
One thing I want to flag: the Milwaukee 2732-20 delivers its best performance when paired with a High Output battery. On a standard 5.0Ah M18 pack, the saw works fine for lighter-duty cuts. But when you're ripping 3/4-inch plywood for extended sessions, the HIGH OUTPUT 6.0Ah or 8.0Ah pack makes a noticeable difference in sustained speed. That's an additional cost consideration if you're building out a new battery inventory.
The LED light positioned to illuminate the cut line is genuinely useful in low-light conditions, and the electric brake stops the blade fast after you release the trigger -- important for jobsite safety when you're moving the saw around frequently.
DeWalt FLEXVOLT 60V MAX 7-1/4" Circular Saw -- In-Depth
The DeWalt DCS578B is a left-blade circular saw that shares its 5800 RPM no-load speed with the Milwaukee but brings a few meaningful advantages. The headline feature is the FLEXVOLT 60V MAX platform -- this saw requires a FLEXVOLT battery pack and delivers corded-level power without stepping down to a standard 20V MAX pack. For contractors already running FLEXVOLT batteries on their grinders, table saws, and miter saws, this versatility is a real win.
The 57-degree bevel capacity is the widest in this class. The adjustment mechanism is smooth, with clear, easy-to-read scales on the bevel and depth adjustments. The electric brake is standard, and the guard retraction is clean with no binding even in repeated use.
The saw weighs 7.5 lbs bare, which is 0.3 lbs heavier than the Milwaukee. That's negligible in isolation, but when you add a heavy FLEXVOLT battery, the total package weight climbs noticeably. On a long framing day, that extra weight and the slightly different balance point are things you feel. The left-blade design is well-suited to right-handed users who want to see the cut line, and the position of the LED is solid for cut-line visibility.
One ergonomic note: the battery protrudes from the heel of the saw when using a FLEXVOLT pack, which can occasionally snag on material edges when you're repositioning the saw mid-cut. It's a minor complaint, but worth knowing if you do a lot of sheet goods work in tight quarters.
The Milwaukee 2732-20 has a real limitation around battery dependency. The saw technically works on any M18 pack, but running it on a standard 2.0Ah or 3.0Ah battery for anything beyond light cuts is a recipe for poor performance and thermal shutoff. You're essentially buying into a saw that needs the HIGH OUTPUT ecosystem to shine, which adds to the total cost of ownership. The absence of a rafter hook is also a quality-of-life miss -- this is a tool aimed at framers and contractors who move constantly, and a rafter hook should be standard at this price point.
The DeWalt DCS578B has a balance problem at full load. The FLEXVOLT battery is large and heavy, and it sits at the rear of the tool in a way that shifts the center of gravity rearward. After extended cuts, that balance shift creates more fatigue than you'd expect from a 7.5-pound bare-tool weight. The FLEXVOLT battery cost is also a factor -- if you're buying into this system fresh, budget an additional $100 to $150 for a proper FLEXVOLT pack to get the performance the saw is designed to deliver.
Which One Should You Buy
If you're a Milwaukee M18 user with an established battery inventory -- especially if you already own HIGH OUTPUT packs -- the 2732-20 is the natural choice. The POWERSTATE motor delivers exactly what Milwaukee promises, the magnesium shoe holds up to daily abuse, and the saw integrates cleanly into the M18 ecosystem you've already invested in. You won't feel like you're missing anything versus a corded saw for framing and sheet goods work.
If you're a DeWalt contractor who runs FLEXVOLT batteries on your larger tools, the DCS578B makes strong sense. The dedicated 60V FLEXVOLT setup means you get maximum power from your existing FLEXVOLT packs without any extra steps, and the 57-degree bevel capacity gives you flexibility for complex finish cuts that a 53-degree saw simply can't do. For a roof framer or stair builder who regularly works at steep compound angles, that extra bevel range is worth the premium.
For someone building a new tool collection without an existing ecosystem commitment, I'd give the DeWalt DCS578B the edge only if heavier 60V FLEXVOLT tools are already in the plan. If you are staying mostly on standard 20V MAX batteries, the DCS573B is the better DeWalt comparison point; the DCS578B is a higher-power 60V saw that needs FLEXVOLT packs.
Homeowners and occasional DIYers who do a handful of big cutting projects per year should look carefully at whether either of these premium saws fits their actual usage. Both are professional-grade tools. If you're cutting lumber for a deck or a framing project once a year, a less expensive brushless saw will serve you well and leave money on the table for other tools or materials.
Frequently Asked Questions
Is the Milwaukee M18 FUEL 7-1/4" Circular Saw better than the DeWalt FLEXVOLT 60V MAX 7-1/4" Circular Saw?
It depends on your priorities. The Milwaukee M18 FUEL 2732-20 excels at corded-equivalent cutting power with a lighter magnesium shoe and seamless M18 ecosystem integration. The DeWalt DCS578B stands out for its wider 57-degree bevel capacity and FLEXVOLT compatibility that boosts power automatically. Both are solid choices -- the right answer usually comes down to which battery platform you're already using.
No. Milwaukee and DeWalt use proprietary battery platforms that are not cross-compatible. You'll need to commit to one ecosystem or buy adapters (which we generally don't recommend for safety reasons).
Which circular saw is better for a homeowner vs. a professional?
For homeowners and weekend warriors, the more affordable option typically offers the best value. Both of these saws are professional-grade -- a homeowner who frames one deck per year may be better served by a less expensive brushless circular saw. Professionals who use tools daily will appreciate the durability, battery runtime, and sustained power of either of these tools.
Milwaukee tools are built for professional-grade durability and performance. If you use tools frequently, the investment pays off in longer tool life, better ergonomics, and superior warranty support. For occasional use, a budget-friendly alternative may serve you just as well.
Does the DeWalt DCS578B work with standard 20V MAX batteries?
No. The DCS578B is a FLEXVOLT 60V MAX saw and requires a FLEXVOLT battery. The advantage is that those FLEXVOLT packs can also run many DeWalt 20V MAX tools in 20V mode, but the saw itself is not a standard 20V MAX tool.
What is the cut depth difference between these saws at 45 degrees?
At a 45-degree bevel, the Milwaukee 2732-20 cuts to 1-13/16" depth and the DeWalt DCS578B cuts to 1-11/16". The Milwaukee has a slight advantage here for bevel cuts into thicker stock. At 90 degrees both saws cut to 2-7/16", which is enough to clear double 2x framing material in a single pass.
Which saw has a better warranty?
Both Milwaukee and DeWalt back their professional-grade tools with a 5-year limited warranty on the tool and a 2-year warranty on batteries when registered. Milwaukee's service network has a slight edge in some regions for speed of repair turnaround, but both brands offer strong warranty support for professional users.
