Key Features
Brushless PowerThe brushless motor delivers up to 1.39 HP, so this string trimmer has the muscle to cut dense grass and thicker overgrowth without dragging down. Run Time ControlHigh and low speed settings plus a variable speed trigger let you choose between maximum cutting power and longer battery run time depending on the job. Fast Line ReloadsThe Easy Load head holds up to 25 feet of line and can be reloaded in under 30 seconds, which means less downtime when you are trimming a bigger property.
Overview
The Milwaukee M18 Brushless String Trimmer Kit, model 2828-21E, is built for users who want cordless trimming power without stepping up to a heavier commercial setup. This is a cordless string trimmer designed for grass trimming and clearing thick brush. If you maintain residential property, manage rentals, handle general exterior cleanup, or just want an M18 outdoor power tool that can do real work, this kit gives you the tool, battery, and charger to get started.
On the performance side, the brushless motor delivers up to 1.39 HP and spins up to 6,200 RPM, which matters because it helps the trimmer keep cutting speed up in dense grass instead of bogging down the second conditions get tough. The adjustable 14 inch to 16 inch cutting swath also lets you tune the tool to the job. Run 14 inches when you want to stretch run time, or open it up to 16 inches when you want to cover more ground in each pass.
Milwaukee also got the control side right here. You get two speed settings and a variable speed trigger, so you are not stuck running wide open all the time. High speed is there for thick growth and more demanding trimming, while low speed helps maximize run time for regular lawn edges and maintenance passes. That kind of control is what makes a cordless trimmer actually useful day to day instead of feeling like a compromise.
The head design is another practical win. The Easy Load trimmer head can be loaded in under 30 seconds and accepts either 0.080 inch or 0.095 inch line. It holds 25 feet of 0.080 line or 20 feet of 0.095 line, which gives you flexibility depending on whether you are trimming lighter grass or leaning harder into heavier material. If you have used older trimmer heads that waste time during reloads, this is the kind of upgrade you notice right away.
For jobsite and property maintenance use, the weight matters too. At 11.5 pounds, this cordless grass trimmer is lighter than a lot of users expect from a battery platform tool with this level of output. That lighter design helps when you are working along fence lines, trimming around trees, or making repeated passes on a larger yard. It is still a full-size tool, but it is easier to manage over longer sessions than bulkier units that wear you out.
This kit runs on the Milwaukee M18 battery system, which is a big part of the value. It is fully compatible with the M18 platform, and the included M18 REDLITHIUM HIGH OUTPUT XC6.0 battery is matched to the tool for strong power delivery and cooler operation. REDLINK Intelligence monitors power delivery from battery to motor, helping the trimmer stay consistent under load. If you are already on M18, this drops right into your lineup. If you are not, it is still a solid entry point because the charger and battery are included.
Who should buy it? This setup makes the most sense for homeowners who want pro-grade cordless performance, landscapers handling light to medium trimming work, and contractors or maintenance crews already invested in Milwaukee M18 batteries. If your priority is clean edging, routine grass trimming, and enough power for overgrown sections without dragging out a gas unit, this Milwaukee string trimmer kit hits a sweet spot.
Clears Heavy Growth Without the Gas Headache
This is the kind of cordless string trimmer that makes sense when standard lawn trimming turns into mixed grass and brush cleanup. It is built to stay productive in heavier growth while still being manageable enough for regular maintenance work.
- Brushless motor delivers up to 1.39 HP
- Up to 6,200 RPM for maintaining cutting performance in dense grass
- 16 inch maximum cutting swath covers more area per pass
Milwaukee M18 Brushless String Trimmer Kit Gives You Better Control
Not every trimming job needs full speed. The two-speed setup and variable speed trigger let you feather the cut around landscaping, then step up when you hit taller grass or thicker spots.
- High speed handles more demanding cutting
- Low speed helps maximize run time on standard trimming
- Included XC6.0 battery and charger mean the kit is ready to work out of the box
What’s in the Box
- (1) M18 Brushless String Trimmer (2828-20)
- (1) M18 REDLITHIUM HIGH OUTPUT XC6.0 Battery (48-11-1865)
- (1) M18 and M12 Charger (48-59-1812)
At a Glance
1.39 HPMaximum Output 6,200 RPMTop Speed 14 in – 16 inCutting Swath 11.5 lbWeight
Key Specifications
| Battery System | M18 |
|---|---|
| Motor Type | Brushless |
| Maximum Output | 1.39 HP |
| No-Load Speed | Up to 6,200 RPM |
| Cutting Swath | 14 in – 16 in |
| Maximum Line Diameter | 0.095 in |
| Weight | 11.5 lb |
| Head Style | Easy Load |
Compatibility
Battery PlatformCompatible with the Milwaukee M18 system. Included BatteryShips with an M18 REDLITHIUM HIGH OUTPUT XC6.0 battery pack. Included ChargerIncludes an M18 and M12 charger for use within Milwaukee’s battery ecosystem. Trimmer LineAccepts 0.080 inch or 0.095 inch trimmer line in the Easy Load head.
Built For
Landscaping Property Maintenance Grass Trimming Brush Cleanup Residential Lawn Care General Contracting
Pro Tip
Use the 14 inch swath and low speed when you are doing routine perimeter trimming and saving battery matters more than outright coverage. Open it up to 16 inches and switch to high speed when the grass gets thicker and you want to move faster.
Warranty & Support
3 Years (Tool), 3 Years (Battery)
Tool Nut’s Take
Tool Nut’s Take
A smart buy for guys who want real cordless trimming power
The Milwaukee M18 Brushless String Trimmer Kit gives you the performance most people actually need for lawn and property maintenance, without the extra fuss of gas equipment.
- Who it’s for: Homeowners, maintenance crews, and Milwaukee M18 users who need a cordless grass trimmer that can handle both routine edging and thicker overgrowth.
- Why it stands out: The mix of brushless power, adjustable 14 inch to 16 inch swath, speed control, and the easy-loading head makes it more useful in the real world than basic entry-level trimmers.
- Worth knowing: This one is not QUIK-LOK attachment capable, so buy it for trimming performance, not as a multi-head platform tool.
Common Questions
- Is this a cordless or gas string trimmer? It is a cordless string trimmer that runs on the Milwaukee M18 battery system.
- What line sizes does it use? The Easy Load head accepts 0.080 inch and 0.095 inch trimmer line.
- Can you adjust the cutting width? Yes. The cutting swath is adjustable from 14 inches to 16 inches.
- Is this model QUIK-LOK attachment capable? No. The 2828-21E is listed as not QUIK-LOK attachment capable.
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