Milwaukee 2889-20 Grinder Review
Our verdict
The Milwaukee 2889-20 is an 18-volt battery-powered angle grinder rated at 8500 RPM and 4.7 stars from 286 reviews at $183.43. The listed specs indicate a high motor power rating alongside a light 16-ounce body, making it a notable option in the Milwaukee M18 cordless grinder lineup.
Check price on AmazonBest for
Milwaukee M18 platform users who need a high-output cordless grinder in a compact, lightweight package
Skip if
You want stronger owner feedback volume before committing at $183.43, or do not yet own M18 batteries
- Power Source electric, gas, Battery Powered
- Voltage 18 Volts
- Speed 8500 RPM
- Motor 1800
- Weight 16 ounces
- Priced 86% above the category median ($98.50 across 92 tracked models)
Our scorecard
-
Owner rating4.7/5
4.7 average across 286 owner ratings
-
Popularity2.6/5
286 owner reviews, more than most models here
The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other power tools and workshop machinery we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.
Overview
The Milwaukee 2889-20 combines an 18-volt battery platform with 8500 RPM no-load speed and a 16-ounce body weight, producing a notably light cordless grinder for its output class. The listed motor power is 1800, which if expressed in watts would place this among the highest-powered grinders in the batch. The published spec should be verified against Milwaukee's official data sheet.
At $183.43 the 2889-20 sits between the Milwaukee 2880-20 and 2886-20 in price, offering a different configuration balance. The power source listing references multiple modes, reflecting a multi-platform or variable-power listing rather than a traditional single-mode spec. The 16-ounce weight matches the lightest models in this batch.
With 286 reviews at 4.7 stars and 100 units sold last month, the 2889-20 shows solid but not dominant demand compared to the 2880-20. Buyers on the M18 platform who want high listed motor output in a lightweight body have a compelling reason to consider it.
Pros
- 16-ounce weight is among the lightest for an 18V grinder in this batch
- High listed motor power with 18V battery platform
- 4.7 stars from 286 verified owner reviews
- Runs on Milwaukee M18 batteries for platform compatibility
Cons
- Motor power unit is not explicitly stated in the published data; confirm with Milwaukee's specification sheet
- $183.43 price requires justification against the lower-cost Milwaukee 2880-20
- 100 units sold last month is lower demand than the 2880-20 and 2886-20
Specifications
| Power Source | electric, gas, Battery Powered |
|---|---|
| Voltage | 18 Volts |
| Speed | 8500 RPM |
| Motor | 1800 |
| Weight | 16 ounces |
Performance notes
Operating at 8500 RPM on an 18-volt battery platform, the Milwaukee 2889-20 handles typical angle grinder tasks including cutting, grinding and surface prep. The 16-ounce body weight enables low-fatigue use in overhead and single-hand positions. The listed motor power of 1800 is noted without a confirmed unit in the published data.
What buyers say
Owners reporting 4.7 stars across 286 reviews cite the light weight and M18 platform integration as the primary attractions. Feedback is generally positive on performance for everyday grinding tasks. Some buyers note they chose this model specifically for its lower weight compared to other Milwaukee 18V options.
More from Milwaukee
Similar power tools and workshop machinery to consider
Frequently asked questions
Is the Milwaukee 2889-20 compatible with M18 batteries?
The 2889-20 is listed as battery-powered on an 18-volt platform, consistent with Milwaukee's M18 battery series. Confirm compatibility with your specific M18 battery generation before purchasing.
How does the Milwaukee 2889-20 compare to the Milwaukee 2880-20?
Both run at 8500 RPM on 18V. The 2889-20 weighs 16 ounces versus 79.82 ounces for the 2880-20 and costs more at $183.43 versus $149.99. The 2880-20 has far more reviews (2,400 vs 286). Choose the 2889-20 if the weight saving is a priority.
Questions about the Milwaukee 2889-20 before you buy?
Reach our team at hello@toolgalaxy.com for a detailed comparison or spec check.