Key Features
Trim and ClearThis combo pairs a 13 inch cordless string trimmer with a handheld blower, so you can cut back overgrowth and clean up clippings with one battery platform. Runtime ControlVariable trigger control on both tools helps you use only the power you need. That means better control in tight areas and less wasted battery on lighter cleanup work. Useful Blower OutputThe blower delivers up to 400 CFM at 90 MPH, which is enough for sidewalks, driveways, decks, and general yard cleanup without dragging around a gas tool.
Overview
The DeWalt DCKO975M1 20V MAX String Trimmer and Blower Combo 4.0Ah Kit is a cordless outdoor power tool combo built for homeowners and pros who want one grab-and-go setup for trimming grass and clearing debris. This is a string trimmer and handheld blower combo kit designed for lawn trimming and yard cleanup. Model Number DCKO975M1. You get the DCST925 string trimmer, the DCBL720 blower, one 20V MAX 4.0Ah battery, and a charger in the same box.
On the trimming side, the DCST925 uses a 13 inch cutting swath with dual 0.080 inch line and a bump feed head. That matters because it gives you decent coverage without making the tool feel oversized around fences, flower beds, mailbox posts, and tight property lines. The variable trigger and high and low speed control let you back off when you are just touching up lighter grass, then step up when the edge is thicker or overgrown. DeWalt also uses a gear drive transmission design here, which is the part that helps the trimmer keep working when the grass gets heavier instead of bogging down right away.
The blower side is the DCBL720, and this is the part of the kit that makes cleanup faster than a rake-and-broom finish. With up to 400 CFM and 90 MPH, it is set up for blowing grass clippings off sidewalks, porches, patios, garage aprons, and driveways. The variable trigger and speed lock matter in real use because you can feather airflow around mulch beds and decorative stone, then lock into a steady output for longer passes across concrete or asphalt. DeWalt also calls out the axial fan design and brushless motor, both aimed at getting better efficiency and motor life while keeping the blower easy to handle.
Jobsite and yard practicality are where this kit makes the most sense. The blower is rated at 61 dB, which is useful if you work in neighborhoods, HOA communities, or other noise-sensitive areas where gas equipment gets old fast. The string trimmer is built around an ergonomic balanced layout, and the blower is described as lightweight and ergonomic as well. That does not just sound nice on paper. It means less fighting the tool when you are making repeated passes around a property, especially if you are trimming fence lines first and then switching straight over to cleanup.
From a system standpoint, this kit runs on the DeWalt 20V MAX platform and includes a 4.0Ah battery to get you started. If you already own other DeWalt 20V MAX cordless tools, this kit fits right into that battery setup. It is also called out as compatible with DeWalt FLEXVOLT batteries for extended runtime on 20V MAX tools, which is useful if you already have larger packs and want longer sessions between swaps. That makes this combo easier to justify if you are already bought into the yellow platform and want outdoor tools that share chargers and batteries with the rest of your cordless lineup.
Who should buy it? This kit makes the most sense for homeowners maintaining regular-size yards, remodelers and property maintenance crews who need cordless cleanup tools, and contractors who want a quieter alternative to gas for lighter landscape work. If you need to power through routine trimming, edge cleanup, and blowing off hard surfaces without mixing fuel or pulling a cord, the DeWalt DCKO975M1 20V MAX String Trimmer and Blower Combo 4.0Ah Kit is a practical setup. If you are maintaining large acreage or clearing wet heavy debris all day, you may want more battery capacity on hand, but for everyday trimming and cleanup this combo hits the sweet spot.
One Kit for Routine Yard Work
This setup covers the two jobs most people do every time they mow: trim what the mower misses and blow the mess off hard surfaces after. Keeping both tools on the same battery system cuts down on clutter and makes the switch from trimming to cleanup quick.
- Includes DCST925 string trimmer and DCBL720 handheld blower
- Comes with one 20V MAX 4.0Ah battery and charger
Trim Overgrowth Without Fighting the Tool
The trimmer is built for control first. A 13 inch swath is large enough to move along property edges at a good pace, but still manageable around posts, beds, and tight corners where a wider head can feel clumsy.
- 13 inch cutting swath with dual 0.080 inch line
- Variable trigger, high and low speed control, and bump feed head
Clear Walkways Fast
The blower is sized right for the cleanup work most users actually do after trimming. It gives you enough airflow to move clippings, dust, and dry leaves off concrete without hauling around a bulkier gas machine.
- Up to 400 CFM air volume and 90 MPH air speed
- Variable trigger and speed lock for steady cleanup passes
Built to Be Easier on Your Arms
Lightweight cordless outdoor tools are not just about comfort. They help you stay accurate when you are working around windows, cars, mulch beds, and entryways where too much fatigue turns into sloppy work.
- Blower weighs 7.1 lbs and is built with an ergonomic layout
- Low 61 dB noise rating helps in quieter neighborhoods and noise-sensitive properties
What’s in the Box
- (1) DCST925 20V MAX String Trimmer
- (1) DCBL720 20V MAX Blower
- (1) 20V MAX 4.0Ah Battery
- (1) 20V MAX Charger
- (1) Owner’s Manual
At a Glance
13 in.Trimmer Swath 400 CFMBlower Air Volume 90 MPHBlower Air Speed 4.0AhIncluded Battery
Key Specifications
| Voltage | 20V MAX |
|---|---|
| Battery Capacity | 4.0Ah |
| Trimmer Cutting Swath | 13 in. |
| Trimmer Line Diameter | 0.080 in. |
| Trimmer Speed | 5300 / 6300 RPM |
| Blower Air Volume | 400 CFM |
| Blower Air Speed | 90 MPH |
| Noise Rating | 61 dB |
Compatibility
Battery PlatformWorks on the DeWalt 20V MAX battery system. Extended Runtime OptionDeWalt notes that 20V MAX tools can use FLEXVOLT batteries for extended runtime. Charging SetupIncludes a DeWalt 20V MAX charger for the included 4.0Ah battery.
Built For
Landscaping Property Maintenance Home Yard Cleanup Sidewalk and Driveway Cleanup Fence Line Trimming DIY / Hobbyist General Contracting Noise-Sensitive Areas
Pro Tip
Use the trimmer’s low speed for light grass and finish work around beds, then bump up to high only when you hit thicker patches. On the blower, lock the speed once you find the airflow you need for sidewalks so you are not squeezing the trigger the whole pass.
Warranty & Support
3-year limited factory warranty and 30 day satisfaction guarantee.
Tool Nut’s Take
Tool Nut’s Take
DeWalt DCKO975M1 20V MAX String Trimmer and Blower Combo 4.0Ah Kit is the smart buy for everyday yard work
This is the kind of cordless outdoor combo that makes sense because both tools solve real weekly cleanup jobs without dragging you into gas-tool hassle.
- Who it’s for: Homeowners, maintenance crews, and contractors who want a cordless string trimmer and blower for routine grass trimming, driveway cleanup, and lighter debris work.
- Why it stands out: The trimmer gives you a useful 13 inch swath with variable speed control, and the blower’s 400 CFM and 90 MPH output is strong enough for cleanup that actually needs to get done.
- Worth knowing: This kit includes only one 4.0Ah battery, so if you are doing a bigger property or longer cleanup sessions, having another pack ready is a good move.
Common Questions
- Is this a gas or cordless combo? It is a cordless combo built on the DeWalt 20V MAX battery platform.
- What trimmer line size does it use? The string trimmer is specified for 0.080 inch line and comes with a dual-line bump feed setup.
- How much airflow does the blower produce? The blower is rated for up to 400 CFM and up to 90 MPH.
- Is the blower loud? The blower is listed at 61 dB, which helps for work in quieter neighborhoods and noise-sensitive properties.
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