Milwaukee 2880-20-NBX Grinder
- Grinder
- Battery
- 5.27 pounds
- 18 volts
- Better rated than 66%
A capable 18 volt cordless grinder at 8500 RPM for anyone already on Milwaukee's battery system, though check whether battery and charger are included before buying.
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How it ranks among the 150 grinders we track
4.7★ across 251 Amazon ratings, Bayesian-smoothed toward the category average.
251 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
50+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 150 grinders we track - how the scorecard works · full grinders data report. Confidence: medium - useful but incomplete evidence.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
Milwaukee's 2880-20-NBX is a battery powered grinder running on 18 volts at up to 8500 RPM, weighing 5.27 pounds. It carries a 4.7 star average across 251 reviews, with around 50 units bought in the past month.
The NBX suffix on Milwaukee tool numbers typically marks a bare tool sold without battery or charger, so budget for those separately if you do not already own Milwaukee's 18 volt system. At 5.27 pounds it sits on the heavier side for a cordless grinder, which trades some one handed maneuverability for the torque needed on tougher cutting and grinding jobs.
- 18 volt battery power
- 8500 RPM top speed
- 5.27 pound weight
- 4.7 stars across 251 reviews
Who it's for
Tradespeople already invested in Milwaukee's 18 volt battery platform who want a cordless grinder for metal cutting, grinding or surface prep. Less suited to first time buyers without existing batteries, since this appears to be a bare tool.
Strengths and trade-offs
Drawn from this product's published specifications.
- Cordless freedom on Milwaukee's 18 volt platform
- 8500 RPM for cutting and grinding work
- 4.7 star rating across 251 reviews
- 5.27 pounds is heavier than some cordless grinders
- Likely a bare tool, no battery included
Performance notes
8500 RPM at the disc drives cutting and grinding speed, while the 18 volt battery platform trades the cord for run time limited by battery charge. At 5.27 pounds, expect more arm fatigue on overhead or extended work than with Milwaukee's lighter corded options.
Specifications
| Brand | MILWAUKEE |
|---|---|
| Model | 2880-20-NBX |
| Power Source | Battery |
| Item Weight | 5.27 pounds |
| Voltage | 18 volts |
| Speed | 8500 rpm |
Other MILWAUKEE grinders
How it compares
This product against the closest alternatives we track in grinders.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Milwaukee 2880-20-NBX GrinderThis product | 4.7 / 5 | 251 | 4.1 / 5 |
| DEWALT DCG413B GrinderDeWalt | 4.8 / 5 | 9,600 | 4.6 / 5 |
| AVID MW590 GrinderAVID | 4.5 / 5 | 6,100 | 4.4 / 5 |
| Makita 9557PBX1 GrinderMAKITA | 4.8 / 5 | 3,960 | 4.4 / 5 |
| CRAFTSMAN CMCG400B GrinderCraftsman | 4.7 / 5 | 2,900 | 4.4 / 5 |
Similar grinders from other brands
Questions about the MILWAUKEE 2880-20-NBX
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
Does the Milwaukee 2880-20-NBX include a battery?
The NBX designation on Milwaukee tools generally indicates a bare tool sold without battery or charger, so confirm on the listing before buying.
What voltage battery does this grinder use?
It runs on Milwaukee's 18 volt platform.
How fast does the 2880-20-NBX spin?
It reaches up to 8500 RPM.