The DeWALT DCST925B 20V MAX 13-in Cordless String Trimmer is a battery-powered handheld string trimmer built for grass trimming, edging cleanup, and knocking back overgrowth around the house or jobsite. This is a string trimmer designed for routine lawn maintenance and light-to-moderate overgrowth cleanup. Model Number: DCST925B. If you already run DeWALT 20V MAX batteries, this bare tool makes sense because you get cordless convenience without paying again for a battery and charger you may already own.

The main story here is the GEAR DRIVE transmission. That matters because string trimmers live or die by whether they keep cutting when the grass gets thick near foundations, fence lines, and landscape beds. DeWALT built this one to amplify torque so the head does not feel weak the second it hits dense growth. It is still a compact cordless trimmer, but it is aimed at users who want more than just touch-up power.

The 13 inch cutting swath is a practical middle ground. It is wide enough to move through routine trimming without taking forever, but not so wide that the tool becomes awkward in tighter areas. DeWALT pairs that swath with 0.080 inch line, which is a common, easy-to-find size for everyday trimming. It also has a dual-line setup with bump feed, which helps maintain cutting efficiency while keeping operation familiar for most users coming from other handheld trimmers.

Control is another strong point on this DeWALT cordless string trimmer. The variable-speed trigger gives you direct control over output, and the separate high/low speed setting lets you choose between maximum power and better runtime management. That matters in real use because not every section of a yard needs full speed. You can run lower for light grass around sidewalks, then step up when you move into heavier patches or taller growth.

At 8.5 lbs, this unit is built to stay manageable in the hand. DeWALT also calls out the balanced, ergonomic design, and that is worth paying attention to on a tool like this. A string trimmer can have enough power on paper, but if it wears your shoulders out halfway through the job, it stops being useful. The straight shaft layout and balanced feel make this a better fit for users who want reach and cleaner control along walls, curbs, and planting beds.

Because the DeWALT DCST925B 20V MAX 13-in Cordless String Trimmer is part of the 20V MAX system, it uses the same DeWALT 20V MAX batteries and chargers as other tools in that platform. That is one of the biggest reasons to buy it. If you already own DeWALT drills, impact drivers, blowers, or other 20V MAX outdoor equipment, adding this trimmer is straightforward. Just keep in mind this is a tool-only model, so the battery and charger are sold separately.

This trimmer is a good match for homeowners who want to stay on one battery platform, property maintenance users who need quick grab-and-go cleanup, and serious DIY users who want more muscle than an entry-level cordless trimmer usually delivers. It is especially appealing if your trimming includes edges with thicker grass and weeds where extra torque actually matters. If you need a light cordless trimmer with decent reach, adjustable power use, and DeWALT battery compatibility, this one is built with that exact buyer in mind.

DeWALT DCST925B 20V MAX 13-in Cordless String Trimmer Gets the Important Stuff Right

This is the kind of cordless trimmer that makes sense for DeWALT users who want real yard-cleanup capability without jumping to a heavier gas setup.

• Who it's for: Homeowners, property maintenance users, and DeWALT 20V MAX owners who need a cordless string trimmer for regular trimming and the occasional thicker patch.
• Why it stands out: The gear drive design, 13 inch swath, and variable-speed control give it a better balance of cutting ability and runtime management than a basic light-duty trimmer.
• Worth knowing: This is a bare tool, so you need to bring your own 20V MAX battery and charger. If you are already on that platform, that is a plus, not a drawback.

• Is this a cordless or corded string trimmer? It is a cordless string trimmer powered by a battery.
• What battery system does it use? It is part of the DeWALT 20V MAX system and uses the same batteries and chargers as other DeWALT 20V MAX tools.
• What size line does it use? It uses 0.080 in. line and includes one pre-wound spool.
• How wide is the cutting path? The maximum cutting path diameter is 13 in.
• Does it include a battery and charger? No. This DCST925B version is a tool-only model.