DeWalt DCS590B Review: Brushless 7-1/4 Inch Saw (October 2026)
The DeWalt DCS590B suits buyers who want a brushless 20V saw with a 7-1/4 in blade and an electric brake. Its battery and charger are sold separately, so check your DeWalt battery setup before choosing it.
On this page (9 sections)
- What does the DeWalt DCS590B review show?
- What are the DCS590B's key specs?
- What does the electric brake do?
- Is a 20V MAX saw enough for your work?
- Which alternatives should you compare?
- How should you choose between these cordless saws?
- Is the DCS590B a good fit for plywood and framing cuts?
- What should you check before buying?
- Is the DeWalt DCS590B worth considering?
The DeWalt DCS590B is a brushless 20V MAX circular saw with a 7-1/4 in blade, up to 2-9/16 in cut depth at 90° and an electric brake. It suits buyers who want a full-size cordless saw and already have, or plan to buy, a compatible battery and charger.
Its clearest buying question is the battery platform. If your tools already use DeWalt 20V MAX batteries, the DCS590B may fit your setup; if you use FLEXVOLT, Milwaukee M18 or Ryobi ONE+, compare the alternatives below before choosing.
What does the DeWalt DCS590B review show?
The DCS590B stands out for its brushless motor, full-size blade and stated cut capacity. DeWalt gives a no-load speed of up to 5,500 RPM, up to 1,700 MWO and up to 368 cuts per charge, though runtime varies with the work and battery.
DeWalt DCS590B 20V MAX XR Brushless Circular Saw: Best for 20V brushless cutting
- 20V MAX battery platform
- Brushless motor
- 2-9/16 in cut depth at 90°
- Electric brake
A 20V MAX XR saw with a brushless motor, a 7-1/4 in blade and an electric brake. The battery and charger are sold separately.
Pros
- Brushless motor
- Up to 2-9/16 in cut depth at 90°
- Electric brake
- 57° bevel capacity with stops at 45° and 22.5°
Cons
- Battery and charger sold separately
- Up to 368 cuts per charge is a maker claim, not a guarantee for every cut
This is a tool-only model, so the saw does not complete a working setup by itself. Check that you have a compatible 20V MAX battery and charger, or include them in your tool budget.
Who should choose the DCS590B?
Choose it if you want a 20V MAX saw with a brushless motor and need the capacity of a 7-1/4 in blade. The electric brake is designed to stop the blade from coasting after you release the trigger.
Look elsewhere if you rely on a different battery system. A saw that fits your existing platform can make more sense than changing batteries for one tool.
What are the DCS590B's key specs?
The DCS590B has a maximum depth of 2-9/16 in at 90° and 2 in at 45°. Those figures help you judge whether it suits the thicknesses and bevel cuts you expect to make.
| Detail | DeWalt DCS590B |
|---|---|
| Blade size | 7-1/4 in |
| Battery platform | 20V MAX |
| Motor | Brushless |
| No-load speed | Up to 5,500 RPM |
| Output | Up to 1,700 MWO |
| Maximum depth at 90° | 2-9/16 in |
| Maximum depth at 45° | 2 in |
| Bevel capacity | 57°, with stops at 45° and 22.5° |
| Brake | Electric brake |
| Battery and charger | Sold separately |
The 57° bevel capacity gives you room to set an angle beyond the common 45° stop. For a cut that needs a specific angle, set the saw and verify the bevel before powering it.
A depth figure is only one part of choosing a saw. The circular saw depth guide explains how blade size, angle and setup affect a cut.
What does the electric brake do?
The electric brake is designed to stop the blade from coasting after you release the trigger. It can help reduce the time the blade keeps spinning after a cut, but you still need to wait for it to stop before setting the saw down.
Keep both hands in control when the cut ends, and follow the manual's instructions for safe handling. A brake is a feature, not a replacement for sound work habits or protective equipment.
For a first cordless circular saw, review the steps in our beginner's guide to using a circular saw. It covers setup, support and cut control.
Is a 20V MAX saw enough for your work?
The DCS590B makes sense when cordless movement and 20V MAX compatibility matter to you. A battery-powered saw avoids a cord across the work area, while the battery still needs charging and adds weight to the tool setup.
DeWalt's figure of up to 368 cuts per charge is a maker claim. The number of cuts you get will depend on the material, cut depth, blade condition and battery, so treat it as a guide rather than a promise for every job.
The corded versus cordless saw comparison can help you weigh mobility against continuous power access. If you make repeated cuts away from an outlet, battery power may be convenient; for long work sessions, plan around charging and spare batteries.
Which alternatives should you compare?
Compare the DCS590B with saws that match your battery platform and preferred features. The DCS578B is DeWalt's 60V MAX FLEXVOLT option, while Milwaukee and Ryobi offer choices for their own cordless systems.
DeWalt DCS578B FLEXVOLT
The DCS578B suits buyers already using DeWalt FLEXVOLT batteries or who want its 60V MAX platform. It has a 7-1/4 in blade, up to 2-9/16 in cut depth at 90°, a 57° bevel capacity and an electric brake.
It also includes an integrated LED and rafter hook. Battery and charger are sold separately, so confirm the setup you need before comparing the two DeWalt saws.
Milwaukee M18 Brushless 7-1/4 Inch Circular Saw
The Milwaukee M18 is a brushless alternative for buyers in the M18 system. Its listed features include an electric brake, LED light, rafter hook and magnesium upper and lower guards.
The provided product facts do not give a cut-depth figure for this model. Check the manual or Milwaukee before choosing it for a cut that depends on a specific depth.
Ryobi ONE+ HP Brushless 7-1/4 Inch Circular Saw
The Ryobi ONE+ HP is an 18V brushless option with a maximum cut depth of 2-9/16 in at 0° and 1-13/16 in at 45°. It also has bevel detents at 0°, 15°, 22.5°, 30°, 45° and 56°.
Its built-in LED, vacuum dust port adapter, pommel handle and rafter hook add practical features. Choose it if the ONE+ platform fits your tools and these details matter for your work.
How should you choose between these cordless saws?
Choose by battery platform first, then cut depth and handling features. The DCS590B offers 20V MAX compatibility, while the DCS578B uses FLEXVOLT, Milwaukee uses M18, and Ryobi uses ONE+.
If you're comparing battery tools more broadly, our guide to brushless versus brushed circular saws explains what the motor type can and cannot tell you. Brushless is one factor; blade, battery, material and cut setup also shape the result.
A DeWalt versus Milwaukee circular saw comparison can help if your choice is between those two brands. For a DeWalt 20V alternative, see our DCS391B review and compare its stated features with the DCS590B.
Is the DCS590B a good fit for plywood and framing cuts?
The DCS590B's 7-1/4 in blade and stated cut depth suit many common cut sizes, but the right setup depends on the material and cut. Support sheet goods so the offcut cannot pinch the blade, and follow the saw manual for blade selection and adjustment.
For plywood, a straight guide and support under the sheet can help keep the cut controlled. Our guide to cutting plywood with a circular saw walks through layout and support choices.
For repeated straight cuts, consider a guide that matches the saw and workpiece. The article on making a circular saw guide covers a simple approach.
What should you check before buying?
Confirm battery compatibility, included items and the cut requirements for your work before ordering. The DCS590B is a tool-only saw, so it does not include a battery or charger.
Check the depth and bevel needed for your usual cuts, then compare those needs with the saw's 2-9/16 in maximum depth at 90° and 2 in at 45°. If you regularly cut at an angle, note the 57° capacity and the 45° and 22.5° stops.
Choose the DCS590B if you want a brushless 20V MAX saw with an electric brake and its stated capacity. Choose the DCS578B for the FLEXVOLT platform, Milwaukee for an M18 setup, or Ryobi for ONE+ tools.
Is the DeWalt DCS590B worth considering?
The DeWalt DCS590B is worth considering if 20V MAX compatibility, a brushless motor and its stated cutting capacity match your work. Its tool-only format means you should account for a compatible battery and charger before deciding.
For your next step, compare the DCS590B with the DCS391B 20V circular saw if you want to stay within DeWalt's 20V lineup.
DeWalt DCS578B FLEXVOLT Circular Saw: Best for the FLEXVOLT platform
- 60V MAX FLEXVOLT platform
- 7-1/4 in blade
- 2-9/16 in cut depth at 90°
- Electric brake
A FLEXVOLT alternative with a stated 5,800 RPM no-load speed and integrated LED. Battery and charger are sold separately.
Pros
- 60V MAX FLEXVOLT platform
- 57° bevel capacity with stops at 22.5° and 45°
- Integrated LED and rafter hook
- Electric brake
Cons
- Battery and charger sold separately
- Choose it only if its battery platform fits your tools
Milwaukee M18 Brushless 7-1/4 Inch Circular Saw: Best for M18 owners
- M18 cordless platform
- Brushless motor
- 7-1/4 in saw
- Electric brake
A brushless 7-1/4 in option for buyers already using Milwaukee M18 tools. It includes an electric brake, LED light and rafter hook.
Pros
- Brushless motor
- Electric brake
- LED light and rafter hook
- Magnesium upper and lower guards
Cons
- No cut-depth figures are provided here
- Bare tool, so confirm battery compatibility
Ryobi ONE+ HP Brushless 7-1/4 Inch Circular Saw: Best for ONE+ users
- 18V ONE+ HP platform
- Brushless motor
- 2-9/16 in cut depth at 0°
- Built-in LED worklight
A brushless 18V option with a 7-1/4 in blade, multiple bevel detents and a dust port adapter. It is a tool-only model.
Pros
- 2-9/16 in maximum depth at 0°
- Bevel detents through 56°
- Built-in LED and vacuum dust port adapter
- Integrated pommel handle and rafter hook
Cons
- Battery and charger are not included
- Platform is different from DeWalt 20V MAX
Frequently asked questions
Is the DeWalt DCS590B a brushless saw?
Yes. The DCS590B has a brushless motor and runs on DeWalt's 20V MAX battery platform.
DeWalt gives a no-load speed of up to 5,500 RPM; actual cutting performance and runtime depend on the material, blade, battery and cut.
What is the DeWalt DCS590B cutting depth?
The DCS590B cuts up to 2-9/16 in deep at 90° and up to 2 in at 45°. Its bevel capacity reaches 57°, with stops at 45° and 22.5°.
Check the manual for setup and safe cutting instructions.
Does the DeWalt DCS590B include a battery?
No. The DCS590B is sold as a tool only, and its battery and charger are sold separately.
Confirm that you have a compatible 20V MAX battery and suitable charger before planning a job around this saw.
How does the DCS590B compare with the DeWalt DCS578B?
The DCS590B uses DeWalt's 20V MAX platform, while the DCS578B is a 60V MAX FLEXVOLT saw. Both have a 7-1/4 in blade, 2-9/16 in maximum depth at 90° and an electric brake.
Choose based on your battery platform and the features you need.
