# Angle Grinder 4-1/2″/5″ (FUEL) — Power tool battery platform and accessory interface compatibility

For Angle Grinder 4-1/2″/5″ (FUEL), brand is Milwaukee; system / platform is M18; model no. is 2780-20; notes is M18 FUEL, 9,000 RPM, recorded from its source on 2026-08-11.

- **Item:** Angle Grinder 4-1/2″/5″ (FUEL) _(verified: appears in the quote below)_
- **Brand:** Milwaukee _(our reading, not quoted from the source)_
- **System / platform:** M18 _(our reading, not quoted from the source)_
- **Model no.:** 2780-20 _(verified: appears in the quote below)_
- **Notes:** M18 FUEL, 9,000 RPM _(verified: appears in the quote below)_

## What the source says

> Angle Grinder 4-1/2″/5″ (FUEL) | 2780-20 | M18 FUEL, 9,000 RPM |

## Source

- https://toolcompatibility.com/battery-platform/milwaukee-m18-battery-compatibility/

Last verified: 2026-08-11. Review by: 2027-08-11.
Part of [Power tool battery platform and accessory interface compatibility](https://referencesource.org/power-tool-battery-compatibility/).