DeWalt DCS570 vs Bosch GKS18V-25: Comparing 7¼-Inch Cordless Circular Saws

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At a glance

The DeWalt DCS570 and Bosch GKS18V-25 are 7¼-inch cordless circular saws built for framing, sheet goods and general jobsite cutting. Both use a 20V-class battery platform, but they are not interchangeable: DeWalt batteries do not fit Bosch tools, or vice versa. The better buy usually depends less on a small difference in cutting performance than on which battery system you already own.

The DCS570 is a straightforward, widely available saw with a 2-9/16-inch maximum cut at 90 degrees. The Bosch GKS18V-25 is also a full-size 7¼-inch saw, with a listed 2-7/16-inch cut at 90 degrees. That one-eighth-inch difference can matter when cutting thick stock, but neither saw replaces a larger saw for repeated deep cuts.

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#1 Pick

DEWALT 20V MAX XR Brushless Cordless 7-1/4 in. Circular Saw, Tool Only (DCS590B)

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#2 Pick

DEWALT 20V MAX Circular Saw, Cordless Sidewinder Style Portable, 6-1/2-Inch Blade, 5150 RPM, 0-50 Degree Bevel Capability, Battery Not Included (DCS391B)

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#3 Pick

DEWALT 20V MAX* 6-1/2 in. Brushless Cordless Circular Saw, Tool Only (DCS565B)

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Key differences

Specifications can vary by regional version or kit, so check the exact listing for the saw, battery and included accessories. In particular, a bare tool price does not include the battery and charger needed to use it.

Cutting capacity and bevel work

At 90 degrees, the DCS570’s 2-9/16-inch capacity is enough to cut a 2x material in one pass and leaves slightly more headroom than the Bosch. The GKS18V-25’s 2-7/16-inch capacity also covers ordinary framing lumber. Both are suitable for plywood and common dimensional stock; the difference matters mainly with thicker material or when you want extra clearance for an uneven workpiece.

The DeWalt bevels to 57 degrees, while the Bosch reaches 50 degrees. For routine 45-degree cuts, both have enough range. DeWalt provides more adjustment for unusual bevels, though cuts near the maximum angle are less forgiving: the blade exposes less depth, and keeping the base plate flat against the work becomes harder. For accurate bevel work, set the angle carefully and make a test cut in scrap rather than trusting the scale alone.

On either saw, a binding blade is a common cause of a stalled cut, rough edges and sudden kickback. Support the offcut so it cannot pinch the blade, keep the shoe flat, and let the blade reach speed before entering the material. A sharp, suitable blade matters more than a small difference in advertised capacity.

Power, batteries and runtime

Battery condition and capacity have a noticeable effect on a cordless circular saw. A small or worn pack may be fine for occasional trim cuts but can lose pace in thick framing lumber or repeated sheet cutting. If you expect long sessions, compare the cost of a larger battery and charger as part of the purchase, not as an afterthought. A higher-capacity pack adds weight, which can make overhead or one-handed positioning more tiring.

Neither model is a sensible reason on its own to switch battery platforms if you already own several compatible tools and batteries. For a homeowner who owns neither system, compare local kit prices and the other tools you expect to buy. DeWalt has a broad 20V MAX range; Bosch makes sense if its 18V platform already covers your drill or other jobsite tools.

If you are choosing a platform as well as a saw, browse DeWalt 20V MAX saw kits and Bosch 18V saw kits, making sure the package includes the battery capacity you need.

Handling, visibility and safety

A 7¼-inch saw gives you access to common full-size blades, but it is larger and heavier than a compact 6½-inch model. The trade-off is better depth capacity and a familiar setup for framing. Check how each saw feels with the battery installed: weight distribution, handle comfort and sightline to the cut can be more important in daily use than a small specification advantage.

Both saws have electric brakes, which stop the blade after the trigger is released. A brake reduces waiting between cuts; it does not make the blade safe to touch immediately. Wait for it to stop fully, keep hands clear of the cut line, and use eye and hearing protection. Check that the lower guard moves freely before each session. If it catches on a splinter or fails to close, stop and fix the problem rather than forcing the next cut.

For repeatable straight cuts in sheet goods, a clamped straightedge often gives a cleaner result than steering by eye. A compatible guide rail or track system can improve accuracy further, but confirm compatibility before buying: circular saws do not all fit the same rails, and an adapter can affect cut depth.

Which one should you buy?

Choose the DCS570 if you use DeWalt 20V MAX batteries, want a little more depth at 90 degrees, or expect to make bevel cuts beyond 50 degrees. It is a practical general-purpose choice for framing, decking repairs and breaking down sheet stock. Its added capacity does not mean it will cut every thick workpiece comfortably; make multiple passes or use a larger saw when the cut exceeds its rated depth.

Choose the Bosch GKS18V-25 if you already own Bosch 18V batteries or find a good kit price. Its slightly lower 90-degree capacity still covers common 2x lumber, and the 50-degree bevel range is enough for most building work. There is little reason to pay a large premium for it if your jobs do not need the Bosch platform and a DeWalt kit is substantially cheaper.

If your work is mostly occasional plywood trimming or light DIY, a less expensive compact cordless circular saw may be easier to handle and cheaper to outfit. If you regularly cut thick timber, value full-size blade availability and need more capacity, compare the cost of a 7¼-inch cordless circular saw with the batteries you already have. Between these two, platform compatibility and total kit cost should decide for most buyers; the DeWalt’s extra depth and bevel range are useful, but not essential for ordinary straight cuts.