US
MILWAUKEE

Milwaukee 2531-21HO M12 FUEL Orbital Detail Sander Kit

  • Amperage Capacity: 2.5 amps
  • Power Source: Battery
  • Grit Number: 120
  • Grit Type: Medium

Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A 12 volt Milwaukee battery sander drawing 2.5 amps, check the current listing for weight and speed specs before buying.

As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.

ASIN: B0BPTMCJCRModel: 2531-21HOCategory: Sanders

Overview

Running on Milwaukee's 12 volt battery platform and drawing 2.5 amps, the 2531-21HO sits in the compact M12 sander line.

At 12 volts, this sits in Milwaukee's compact M12 line rather than its larger 18 volt tools, generally trading raw power for a smaller, lighter tool body. No weight, dimensions or sanding speed are listed here, so its exact size and output cannot be confirmed from this data.

  • 12 volt battery platform
  • 2.5 amp rating
  • Milwaukee 2531-21HO model
  • Sanders category listing

Who it's for

Suits buyers already invested in Milwaukee's 12 volt battery platform who want a compact sander to match. Not the right fit for anyone needing a specific weight, speed or pad size confirmed before purchase, since none of that is listed.

Pros and cons

Pros
  • Compact 12 volt battery platform
  • Matches Milwaukee's M12 tool ecosystem
Cons
  • No sanding speed listed
  • No weight or dimensions given
  • Limited spec data overall

Performance notes

The 12 volt, 2.5 amp rating places this in Milwaukee's compact M12 tool class, generally built for lighter tasks than the larger 18 volt line. No RPM or weight figures are included in this listing to confirm sanding speed or handling.

Specifications

BrandMILWAUKEE
Model2531-21HO
Capacity & performance
Amperage Capacity2.5 ampslower than 64% of 121 sanders
Power & efficiency
Power SourceBattery
Battery DescriptionMilwaukee M12 FUEL Lithium-Ion Battery, 2.5 Ah, Brushless, Part Of The FUEL Line
Voltage12 voltslower than 96% of 116 sanders
Included components
Unit Count1
Other details
Grit Number120
Grit TypeMedium

Closest rivals on specs

16.8V Cordless Electric Sander with 36 Sandpapers
  • Voltage 12 vs 16.8 volts (-29%)
  • Amperage Capacity 2.5 vs 2 amps (+25%)
Brushless Cordless Mini Sander with 36 Sandpapers
  • Voltage 12 vs 16.8 volts (-29%)
  • Amperage Capacity 2.5 vs 2 amps (+25%)
OCTANE R86064B 18V Brushless Quarter Sheet Sander
  • Voltage 12 vs 18 volts (-33%)
  • Amperage Capacity 2.5 vs 3 amps (-17%)
Compare all side by side

Frequently asked questions

What voltage does the Milwaukee 2531-21HO use?

It runs on Milwaukee's 12 volt battery platform.

What amperage is the 2531-21HO rated at?

2.5 amps.

Does the listing include sanding speed for the 2531-21HO?

No RPM figure is listed in this data.