94.4
Best for serious diyers and professional contractors already on the dewalt battery platform
- 0 to 20,000 OPM range
- 3-Speed selector switch
- Quick-change accessory system
$100
Head to head · Power Tools
2880-20 M18 Fuel Brushless Lithium-Ion 4-1/2 vs 20V MAX* Angle Grinder Tool Cordless Brushless
Ravvy scores 2880-20 M18 Fuel Brushless Lithium-Ion 4-1/2 at 93.35 and 20V MAX* Angle Grinder Tool Cordless Brushless at 93.82. 20V MAX* Angle Grinder Tool Cordless Brushless takes the overall pick, best for professional contractors and metal fabricators on the dewalt battery platform.
93.3
$149
Buy this if you need corded-equivalent power and elite safety features, provided you already own M18 batteries to offset the tool-only cost.
Ravvy pick
$160
Professionals should buy this for its top-tier safety sensors and brushless reliability, accepting the higher price point for a bare tool.
How they score
| Factor | 2880-20 M18 Fuel Brushless Lithium-Ion 4-1/2 | 20V MAX* Angle Grinder Tool Cordless Brushless |
|---|---|---|
| Ergonomics | 91 | 91 |
| Build Quality | 96 | – |
| Cutting Power | 94 | 89 |
| Safety Features | 97 | 98 |
| Battery Efficiency | 85 | – |
| Motor Efficiency | – | 94.5 |
| Battery Versatility | – | 95 |
2880-20 M18 Fuel Brushless Lithium-Ion 4-1/2
What owners praise
- Rapid brake stops wheels in under two seconds
- Brushless motor delivers power comparable to 11-amp corded units
- Tool-free guard and accessory changes for faster workflow
- Electronic clutch prevents injury during wheel pinch
- Vibration-reducing side handle improves user comfort
What to know first
- Batteries and charger must be purchased separately
- High power draw drains smaller batteries quickly
- Slightly heavier than base-model brushed grinders
Skip it if occasional diyers who only need a grinder for very light, infrequent tasks.
20V MAX* Angle Grinder Tool Cordless Brushless
What owners praise
- Rapid electronic brake stops wheels in under two seconds
- Brushless motor reduces maintenance and improves efficiency
- Kickback Brake prevents violent tool jerks during stalls
- Two-stage paddle switch enhances operator safety
- Excellent power-to-weight ratio for a cordless unit
What to know first
- Sold as a bare tool without battery or charger
- High current draw depletes small batteries very quickly
- Higher initial investment compared to brushed models
Skip it if budget-conscious diyers who only need occasional light sanding
Specs side by side
| Spec | 2880-20 M18 Fuel Brushless Lithium-Ion 4-1/2 | 20V MAX* Angle Grinder Tool Cordless Brushless |
|---|---|---|
| UPC | 045242566280 | 885911510844 |
| ASIN | B09RX4R3TR | B07457BXJW |
| GTIN | 045242566280 | 885911510844 |
| Brand | Milwaukee | DEWALT |
| Color | Chrome | Multi |
| Style | Hammerdrill | 20V 4.5IN Grinder |
| Voltage | 18 volts | 20 volts |
| Wattage | 800 watts | 20 watts |
| Material | Metal | Metal, Plastic |
| Brand Name | Milwaukee | DEWALT |
| Horsepower | 800 | 0.16 hp |
| Style Name | Hammerdrill | 20V 4.5IN Grinder |
Other options in this category
94.2
Best for professional contractors and serious woodworkers already on the dewalt battery platform
- 3,200 strokes per minute
- 4-position orbital action
- Integrated dust blower
$129
94.2
Best for hvac technicians, tilers, and diy renovators
- 20,000 RPM Max Speed
- AirLock Vacuum Compatibility
- Built-in LED Work Light
$121