Milwaukee 2889-20 M18 FUEL Variable Speed Braking Grinder
- Wattage: 1800 watts
- Maximum Rotational Speed: 8500 rpm
- Power Source: Battery, Corded Electric, Gas
- Material Type: Metal, Plastic
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A well rated grinder within Milwaukee's M18 cordless platform, best suited to someone already invested in that battery system.
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ASIN: B0BGJMFTXKModel: 2889-20Category: Power Grinders
Overview
Milwaukee lists the 2889-20 as an 18 volt grinder rated for 8500 RPM. Its model number ends in 20, and combined with the 16 ounce listed weight, that points to a bare tool sold without battery or charger.
Milwaukee's M18 lineup typically sells the bare tool separately from the battery pack, and the light 16 ounce figure here supports that reading. Buyers who do not already own an M18 battery will need one to run this grinder.
- 18V, 8500 RPM
- 16 oz bare tool weight
- Milwaukee M18 series (2889-20)
Who it's for
Fits existing Milwaukee M18 battery owners who need an additional grinder head for the platform. Not a fit for a first time buyer expecting a battery and charger in the box.
Pros and cons
- 8500 RPM cutting speed
- Light 16 ounce bare tool weight
- Sold as a bare tool, no battery or charger included
- Motor power spec is not clearly listed
Performance notes
At 8500 RPM on 18 volts, this grinder is built for cordless cutting and grinding tasks. The listed 16 ounce weight reflects the bare tool only, without the battery pack that adds most of the working weight.
Specifications
| Brand | MILWAUKEE |
|---|---|
| Model | 2889-20 |
| Dimensions & fit | |
| Item Weight | 1 poundlower than 82% of 107 power grinders |
| Item Dimensions L X W X H | 13.5 × 3.5 × 5.5 inches |
| Capacity & performance | |
| Maximum Rotational Speed | 8500 rpmlower than 81% of 122 power grinders |
| Power & efficiency | |
| Wattage | 1800 wattshigher than 96% of 55 power grinders |
| Power Source | Battery, Corded Electric, Gas |
| Voltage | 18 voltslower than 77% of 103 power grinders |
| Construction & materials | |
| Material Type | Metal, Plastic |
| Color | Red |
| Included components | |
| Included Components | Milwaukee Electric - M18 FUEL. 4-1/2 / 5 VARIABLE |
| Warranty & support | |
| Manufacturer Warranty Description | Manufacturer Warranty |
| Other details | |
| Style Name | Angled |
| Item Type Name | Milwaukee Electric - M18 FUEL. 4-1/2 / 5 VARIABLE SPEED BRAKING GRIND |
Closest rivals on specs
Variable Speed Brushless Angle Grinder for DeWalt 20V- Voltage 18 vs 20 volts (-10%)
DEWALT DCG412P2 20V MAX Angle Grinder Kit 4-1/2 Inch- Voltage 18 vs 20 volts (-10%)
Frequently asked questions
Does the Milwaukee 2889-20 come with a battery?
No, the trailing 20 in the model number and the listed specs point to a bare tool sold without battery or charger.
What voltage is the Milwaukee 2889-20 grinder?
It runs on Milwaukee's 18 volt M18 system.
How fast does the Milwaukee 2889-20 spin?
Up to 8500 RPM.