Milwaukee 2888-20 18V Variable Speed Grinder 4-1/2 Inch
- Wattage: 198 watts
- Maximum Rotational Speed: 8500 rpm
- Power Source: Rechargeable Battery
- Material Type: Metal, Plastic
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
Anyone already on Milwaukee's M18 battery platform gets a capable cordless grinder here, with the caveat that battery and charger are likely sold separately.
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ASIN: B0CDQQMY6QModel: 2888-20Category: Power Grinders
Overview
Running at 8,500 RPM off an 18 volt lithium-ion battery, the Milwaukee 2888-20 is a cordless grinder with a 198 watt motor and a 5.4 pound body.
The -20 suffix in Milwaukee's model numbering typically marks a bare tool sold without battery or charger, so buyers should plan for a compatible M18 battery separately. Listed at 198 watts of motor power and 8,500 RPM, it is positioned for cutting, grinding and surface prep rather than heavy stock removal.
- 18 volt lithium-ion power
- 8,500 RPM no-load speed
- 198 watt motor
- 5.4 pound weight
Who it's for
Fits tradespeople and DIYers already invested in Milwaukee's M18 battery platform who need a cordless grinder for cutting or grinding metal. Less suited to buyers without existing M18 batteries, since the -20 designation suggests none is included.
Pros and cons
- Cordless on the 18 volt M18 platform
- 8,500 RPM for cutting and grinding work
- 5.4 pounds keeps it manageable one-handed
- Model number suggests battery and charger sold separately
- No disc size stated in listing
Performance notes
Cutting and grinding tasks are where this tool is aimed, running 8,500 RPM off 198 watts of motor power on the 18 volt platform, with the 5.4 pound weight keeping it manageable for one-handed use.
Specifications
| Brand | MILWAUKEE |
|---|---|
| Model | 2888-20 |
| Dimensions & fit | |
| Item Weight | 5.4 poundshigher than 75% of 107 power grinders |
| Item Dimensions L X W X H | 13.9 × 8.2 × 3.8 inches |
| Capacity & performance | |
| Maximum Rotational Speed | 8500 rpmlower than 81% of 122 power grinders |
| Power & efficiency | |
| Wattage | 198 wattslower than 94% of 55 power grinders |
| Power Source | Rechargeable Battery |
| Voltage | 18 voltslower than 77% of 103 power grinders |
| Construction & materials | |
| Material Type | Metal, Plastic |
| Color | Red |
| Included components | |
| Included Components | Guard, Handle, Tool, Wrench |
| Other details | |
| Style Name | Angled |
| Item Type Name | Angle Grinder |
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 2888-20 include a battery?
The -20 suffix in Milwaukee's naming convention typically denotes a bare tool without battery or charger.
What voltage battery does it use?
18 volt lithium-ion, Milwaukee's M18 platform.
What is the no-load speed?
8,500 RPM.