A 4-1/2 inch circular saw fills the gap between a jigsaw and a full-size 7-1/4 inch saw. It cuts a sheet of plywood in one pass, fits in spaces a larger saw cannot, and weighs about half as much, which matters on a ladder or over your head. For trim carpenters, cabinet installers, paneling pros, and DIY users who want one saw that does most cuts, the 4-1/2 inch class is the right tool. After looking at 11 current 4-1/2 inch saws (corded and cordless), these five stood out for cut depth, battery runtime, blade quality, and the kind of ergonomics that matter over a long day.
Quick comparison
| Saw | Power source | Cut depth at 90 | Weight | Cuts per charge (3/4 ply) |
|---|---|---|---|---|
| Makita XSH04ZB | 18V LXT | 1-9/16 in | 5.7 lb | 180 (5Ah) |
| Milwaukee M12 Fuel 2522-20 | M12 | 1-5/8 in | 4.3 lb | 90 (4Ah) |
| Rockwell RK3441K | Corded 5A | 1-11/16 in | 5.0 lb | Unlimited |
| DeWalt DCS571B | 20V Atomic | 1-9/16 in | 5.4 lb | 160 (5Ah) |
| Worx WORXSAW WX429L | Corded 4A | 1-11/16 in | 4.4 lb | Unlimited |
Makita XSH04ZB 18V LXT, Best Overall
Makita’s XSH04ZB pairs the 18V LXT platform with a 4-1/2 inch brushless motor that hits 5000 rpm and 1-9/16 inch cut depth. The aluminum shoe is precision-machined and reads bevel accurately to 50 degrees. Around 180 cuts in 3/4 inch plywood per 5Ah battery is best-in-class runtime for the size.
The standout is balance. The motor sits centered over the blade and the handle geometry lets you cut one-handed without the saw nose-diving. The LED light is bright enough to read the cut line in a dim room. Dust ejection points away from the operator on the right-side blade orientation.
Trade-off: bare tool (no battery, no charger), which adds 60 to 100 dollars to the total if you do not already run LXT. The aluminum shoe is rigid but slightly heavier than the magnesium shoes on some competitors. For Makita platform users, this is the obvious pick.
Milwaukee M12 Fuel 2522-20, Best Compact Cordless
The M12 Fuel 2522-20 is the smallest production cordless circular saw worth using. 4.3 pounds, 1-5/8 inch cut depth at 90, and a brushless motor on the M12 platform. Where most M12 tools feel underpowered, the 2522-20 actually handles a full 3/4 inch plywood rip at a reasonable feed rate.
The compact size opens up cuts that no 18V saw fits. Cutting next to a wall, inside a cabinet, or between joists from below are all jobs this saw handles that a Makita XSH04 cannot. The trade for size is runtime: about 90 cuts on a 4Ah XC battery, half the Makita’s number.
Trade-off: small, which means it is not the right tool for a long sheet-cutting day. For trim, cabinet, and access-limited cuts, it is unmatched. Cuts per charge are below the 18V class.
Rockwell RK3441K Compact Circular Saw, Best Corded
The RK3441K runs on a 5-amp corded motor with no battery to charge and no runtime limit. 1-11/16 inch cut depth (slightly deeper than the cordless options because the corded power lets the motor sit closer to the blade), 3500 rpm under load, and a 4-1/2 inch blade with a 3/8 inch arbor.
For shop work where the cord does not get in the way, the Rockwell is the best total value: around 65 dollars, no battery purchase, and consistent power on long rips. The included blade is mediocre; swap it for a 24-tooth Diablo on day one.
Trade-off: the cord. For ladder or jobsite work where cordless is a real benefit, this is the wrong saw. The plastic shoe is less rigid than the aluminum on the Makita and bevel cuts are less accurate.
DeWalt DCS571B Atomic 20V, Best for DeWalt Users
DeWalt’s Atomic line is the compact version of the 20V Max platform, and the DCS571B is the 4-1/2 inch saw. Brushless motor, 5.4 pound weight, 1-9/16 inch cut depth, and full compatibility with all DeWalt 20V batteries. Around 160 cuts per 5Ah battery.
For users who already own DeWalt 20V tools, this saw drops into the kit without buying new chargers or batteries. Build quality is on par with the Makita; the electronic brake stops the blade in under a second when the trigger releases.
Trade-off: handle geometry is less balanced than the Makita XSH04, which makes long one-handed cuts more fatiguing. Bare tool only. For non-DeWalt users, the Makita is the better buy.
Worx WORXSAW WX429L, Best Budget
The Worx WX429L is the cheapest 4-1/2 inch saw worth buying. Around 60 dollars, corded 4-amp motor, 1-11/16 inch cut depth, and a left-side blade orientation that gives a clear sight line of the cut. Build quality is fair for the price; the plastic shoe flexes slightly under load.
For occasional DIY users cutting paneling, plywood, or laminate, the WX429L gets the job done. Vibration is higher than the Rockwell or Makita, but the saw handles 1-by lumber and sheet goods reliably for the kind of project work most homeowners ask of it.
Trade-off: not a daily driver. The motor heats up on continuous rips and needs cool-down breaks every 10 minutes. Build longevity is rated in months of light use, not years of pro use.
How to choose
Cordless or corded
For jobsite, ladder, or away-from-power work, cordless is mandatory. The Makita XSH04ZB is the best 18V option, the Milwaukee M12 the best compact option. For benchtop or shop work, corded saws (Rockwell, Worx) cost less, weigh less, and never need charging.
Cut depth at 90
All five picks clear 3/4 inch plywood. For 1-by lumber, you need the full 1-9/16 to 1-11/16 inch range, which limits the choice. Anything thicker (stacked sheets, 2-by lumber) requires a 6-1/2 or 7-1/4 inch saw.
Blade orientation
Right-side blade (Makita, DeWalt) is the traditional layout and keeps dust away from the operator. Left-side blade (Milwaukee, Worx) gives a clearer view of the cut line for right-handed users. Pick by your existing habit or comfort.
Shoe material
Aluminum or magnesium shoes are rigid and accurate; plastic shoes flex and lose bevel accuracy over time. The Makita, Milwaukee, and DeWalt all use metal; the corded budget picks use plastic. For finish work, metal shoe is meaningful.
For related reading, see our best 6-1/2 inch circular saw blade guide and best 12-inch miter saw for cross-cut needs. For details on how we evaluate power tools, see our methodology.
A 4-1/2 inch circular saw is the right tool for trim, paneling, cabinet work, and any cut where a 7-1/4 will not fit. The Makita XSH04ZB is the best cordless pick, the Milwaukee M12 Fuel covers compact cordless, the Rockwell wins on corded value, the DeWalt Atomic fits the existing DeWalt user, and the Worx covers the budget. Match the saw to the power source and the cut size and you have a saw that earns its place in the kit.
Frequently asked questions
What can a 4-1/2 inch saw actually cut?+
A 4-1/2 inch blade gives you about 1-9/16 inch of cut depth at 90 degrees, which clears 1x lumber, 3/4 inch plywood, MDF panels, paneling, melamine, hardwood flooring, and most trim stock. It does not cut 2x lumber in a single pass; you need a 6-1/2 or 7-1/4 inch saw for that. For finish carpentry, cabinet work, paneling, and any cut in a tight space, the 4-1/2 inch class is the right tool.
Why pick a 4-1/2 inch over a 6-1/2 or 7-1/4?+
Three reasons: weight, one-hand use, and access. A 4-1/2 inch saw weighs 4 to 6 pounds vs 9 to 12 for a 7-1/4, which matters over a long day of overhead or ladder work. The smaller frame lets you cut next to a wall, in a finished room, or close to existing trim where a full-size saw will not fit. And the smaller blade size means fewer kickback events because the blade exits the wood quickly.
Brushless or brushed motor?+
Brushless, every time, on a saw you plan to keep. Brushless motors run cooler, deliver 10 to 30 percent more cuts per charge, and last 2 to 3 times longer because there are no brushes to wear. The price gap has shrunk to 20 to 40 dollars on most cordless saws. The only reason to pick a brushed model in 2026 is if you already own brushed batteries and chargers and the saw is for occasional use only.
How thick a stack can these saws cross-cut?+
All five picks here cut a single 3/4 inch plywood sheet cleanly. Stacked plywood (two sheets) at 1-1/2 inch total is at the edge of the 1-9/16 inch cut depth and works only with a 24-tooth ripping blade and slow feed. For a stack cut, step up to a 6-1/2 inch saw. The 4-1/2 inch class is a single-sheet tool.
What blade should I use?+
For general carpentry, a 24-tooth carbide-tipped blade rips and crosscuts fast in plywood and lumber. For finish work in melamine and laminate, a 40 to 60-tooth blade gives cleaner edges with less chipout. For aluminum and non-ferrous metals, a dedicated non-ferrous blade is required (do not use a wood blade on metal). Most 4-1/2 inch saws ship with a 24-tooth blade; budget another 20 to 30 dollars for a finish blade.
Riley Cooper
Riley Cooper writes for The Tested Hub.