OBJECTIVE Cordless Circular Saw Comparison

Posted on April 26, 2018

While a circular saw is primarily seen as a construction tool, it has many uses in home improvement and woodworking. A circular saw gets used for almost everything -- home building, making kitchen cabinets, putting up fences, and so on. Such versatility makes it one of the first purchases a woodworker will make.

In woodworking, circular saws are mostly used for breaking down heavier sheet goods (plywood, MDF, OSB) into smaller and lighter pieces that are easier and safer to handle on the table saw.

Cordless circular saws are even better because you can bring the tool directly to the workpiece -- no matter where it is. Imagine you are working on a roof, building a deck, or out by your fence and you don't want to or simply cannot drag a cord. They have two main advantages:

  • there is no need to untangle your extension cord, plus there is no power cord getting in the way of the cut.
  • you can own a smaller saw, which means more control over the tool and less user fatigue on arms and wrists.

Since many people will prefer to choose a circular saw belonging to the same battery system they already own, today I chose to compare only bare tools. Without further ado, let's get to it:

(Bare Tool) Cordless Circular Saw Comparison Table

Make & ModelBlade SizeVoltageMotorWeight w/ BatteryRPMCut Capacity (90°)Cut Capacity (45°)Max. BevelAmazon PriceBlade SideBlade BrakeBattery GaugeWork Light
Bosch 1671B6-1/2 in (165 mm)36 V (2x 18 V)-9.8 lbs (4.44 kg)40002-1/8 in (54 mm)1-5/8 in (41 mm)50°See today's priceLeftYesYes-
Bosch CCS180B6-1/2 in (165 mm)18 V-8.5 lbs (3.85 kg)39002 in (51 mm)1-9/16 in (40 mm)50°See today's priceLeftYesYes-
DeWalt DC390B6-1/2 in (165 mm)18 V-7 lbs (3.17 kg)37002-1/4 in (57 mm)1-5/8 in (41 mm)50°See today's priceLeft---
DeWalt DCS391B6-1/2 in (165 mm)20 V-8.5 lbs (3.85 kg)51502-1/4 in (57 mm)1-5/8 in (41 mm)50°See today's priceLeft---
DeWalt DCS575B7-1/4 in (184 mm)20 VBrushless10.25 lbs (4.64 kg)58002-1/4 in (57 mm)1-5/8 in (41 mm)57°See today's priceRightYesYesYes
Hitachi C18DSLP46-1/2 in (165 mm)18 V-7.1 lbs (3.22 kg)34002-1/4 in (57 mm)N/A50°See today's priceLeftYesYesYes
Makita XSH01Z7-1/4 in (184 mm)36 V (2x 18 V)-10.1 lbs (4.58 kg)48002-5/8 in (67 mm)1-7/8 in (48 mm)50°See today's priceRightYesYes-
Makita XSH03Z6-1/2 in (165 mm)18 VBrushless7.3 lbs (3.31 kg)50002-1/4 in (57 mm)1-5/8 in (41 mm)50°See today's priceLeftYesYesYes
Makita XSR01 (XSR01PT)7-1/4 in (184 mm)36 V (2x 18 V)Brushless12.5 lbs (5.66 kg)51002-9/16 in (65 mm)1-3/4 in (44 mm)53°See today's priceLeftYesYesYes
Makita XSS01Z6-1/2 in (165 mm)18 VBrushless7.6 lbs (3.44 kg)37002-1/4 in (57 mm)1-9/16 in (40 mm)50°See today's priceLeftYesYesYes
Milwaukee 2530-205-3/8 in (137 mm)12 VBrushless6.5 lbs (2.95 kg)36001-5/8 in (41 mm)1-1/8 in (29 mm)50°See today's priceLeft-YesYes
Milwaukee 2630-206-1/2 in (165 mm)18 V-9 lbs (4.08 kg)35002-1/8 in (54 mm)1-5/8 in (41 mm)50°See today's priceLeft-YesYes
Milwaukee 2730-206-1/2 in (165 mm)18 VBrushless8.5 lbs (3.85 kg)50002-3/16 in (56 mm)1-5/8 in (41 mm)50°See today's priceLeft-YesYes
Milwaukee 2731-207-1/4 in (184 mm)18 VBrushless9.5 lbs (4.31 kg)50002-1/2 in (64 mm)1-7/8 in (48 mm)50°See today's priceRightYesYesYes
Porter-Cable PCC660B6-1/2 in (165 mm)20 V-7.5 lbs (3.4 kg)40002-1/8 in (54 mm)N/A50°See today's priceLeft---
Ridgid R86527-1/4 in (184 mm)18 V-11.5 lbs (5.21 kg)37002-7/16 in (62 mm)1-13/16 in (46 mm)56°See today's priceRight-YesYes
Ridgid R86537-1/4 in (184 mm)18 VBrushless10 lbs (4.53 kg)38002-7/16 in (62 mm)1-13/16 in (46 mm)56°See today's priceRight-YesYes
Ryobi P5076-1/2 in (165 mm)18 V-6.5 lbs (2.95 kg)47002-1/16 in (52 mm)1-7/16 in (37 mm)56°See today's priceLeft-Yes-
Ryobi P5087-1/4 in (184 mm)18 VBrushless6.6 lbs (2.99 kg)37002-7/16 in (62 mm)1-13/16 in (46 mm)56°See today's priceLeft-Yes-

How To Read This Table

Here are the main features you should consider when choosing a cordless circular saw.

Blade Size

Blade replacements for 7-1/4 inch saws are much easier to find. 6-1/2 inch blades have less options, and other measurements are even harder to find.

On the other hand, smaller saws are lighter, smaller, and give a better sense of control and comfort. They can make a lot of sense if you will make most of your cuts with sheet goods. You should opt for a bigger saw if you work with thicker construction lumber such as two-bys.

Power And Weight

In cordless tools more power usually means more weight due to the motor and the extra capacity battery.

Motor and battery technology has been constantly improving dramatically over the past decade. Brushless motors are more efficient because they have no carbon brushes to create friction and they are worthwhile in circular saws.

And note: the difference between Brushed and Brushless motors goes beyond marketing: brushless tools get better run-time and increased power, while also being lighter and lasting longer.

As for batteries, current lithium-ion technology is lightweight, making current cordless tools more compact and nimble. Lower capacity batteries make the tool lighter and easier to use, and higher capacity batteries give you more run time with less pauses for changing or recharging batteries. In other words, your final choice here depends on what type of use you plan on making.

Weight With Battery

The lighter the saw is, the more you feel like it is an extension of your hands. This is important for making a controlled and accurate cut.

The extra weight and power usually demand more experienced hands to handle the saw in operation, so take that into consideration when choosing a model for you.

RPMs And Noise

Higher RPMs help you cut through harder materials, and also tend to be noisier.

While you should always wear Personal Protection Equipment when operating power tools, noise numbers are also an important figure to consider when buying your new tool.

Depth Of Cut

While most circular saws use blades with the same dimensions, in practice their cut capacity varies slightly among brands.

Also consider that cut capacity is smaller at 45° when comparing with a straight 90° cut.

And a final note: most manufacturers recommend setting the cut depth at 1/4 inch deeper than the material, so take that into consideration when choosing your saw.

In practice, you need at least 1-3/4 inches in depth if you plan to cut two-by material. While most saws offer that and more for 90° cuts, pay attention to the depth of cut at 45°.

Bevel Capacity And Positive Stops

The vast majority of your cuts will be straight at 90°.

Most saws will bevel to at least 45°, and some higher-end models will bevel even further.

As for positive stops, most models have positive stops for 45° cuts, and some will also offer a 22.5° stop as well.

Left Or Right Blade

Traditionally most circular saws have blades on the right side.

That design allows the majority of users (right-handed) to perform smaller crosscuts and have the tool riding the board, while the off-cut falls to the right of the blade. On the other hand, this design makes life complicated when ripping wider panels.

Some manufacturers started designing blades on the left because they claim this design offers a better line of sight for operating your circular saw.

More traditional woodworkers simply prefer to go around to the other side of the panel and continue the cut by pulling the saw on longer cuts, instead of reaching further all the way from the same side.

In my opinion, it is purely a matter of preference, but you might think differently.

Blade Brake

This feature reduces your downtime waiting for the blade to stop before you restart your next cut, which increases your productivity.

Battery Gauge

Would you like to climb up the stairs and find out at the roof that your battery is low on charge?

Good cordless tool systems should allow you to check for charge at the battery itself, this way you can always have fully charged batteries and increase your productivity.

Work Light

This is a featured favored by older-- I mean, more experienced woodworkers and tradesmen. More light favors the tired eyes.

Lights also help to follow the cutting line in low-lit working conditions.

What About You?

If you made it this far, I hope I have helped you make an informed decision. If you have anything to ask me, or if I have incorrect data somewhere on this page, please feel free to leave a comment below -- I read and answer all of them.

Thanks!

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