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Internet # 322890642

Model # 2531-20-48-80-5320

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M12 12-Volt FUEL Lithium-Ion Cordless Orbital Detail Sander (Tool-Only) W/320-Grit Mesh Sanding Sheets (12-Pack)

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  • 2X faster material removal with the POWERSTATE™ Brushless Motor
  • REDLINK PLUS™ Intelligence ensures maximum performance
  • POWERGRID Tear Resistant Mesh for maximum durability
  • View More Details

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Product Details

About This Product

Designed for the professional carpenter, remodeler or general contractor, the M12 FUEL Orbital Detail Sander is optimized for precision and designed to complement larger sanders on the jobsite. The M12 FUEL Orbital Detail Sander delivers faster detail sanding, stain grade finish and more access in corners and contours. The POWERSTATE Brushless Motor and REDLINK PLUS intelligence provides the power to remove material Up to 2X Faster than traditional hand sanding solutions on the market and protects from overload, overheating and over discharge. The detail sander features an orbital eccentric motion with a 1.5 mm orbit diameter to deliver a clean, consistent stain-grade surface finish. The new-to-world pad shape provides sharp, straight edges for greater accuracy and access into confined corners. The sponge pad allows the abrasive to contour to the work surface when working with complex trim profiles, while the pad saver protects against excessive heat buildup to extend the life of the backing pad. The sander features a variable speed trigger with a lock-on button and 4-speed settings that offer adjustment from 14K - 4K for increased control across a wide variety of materials. Milwaukee Mesh Sanding Sheets for M12 FUEL Orbital Detail Sander are designed with POWERGRID Tear Resistant Mesh for maximum durability, delivering up to 12 x L life verses standard sandpaper.

Highlights

  • 2531-20: POWERSTATE brushless motor: generates the power to deliver 14K max OPM under load for faster material removal
  • 2531-20: REDLINK PLUS intelligence: ensures maximum performance and protects from overloads, heating and over-discharge
  • 2531-20: Orbital sanding motion with 1.5 mm orbit diameter delivers a scratch-free stain grade surface finish
  • 2531-20: compatible with the full lineup of new Milwaukee POWERGRID mesh sanding sheets
  • 2531-20: lightweight, ergonomic design at 1.3 lbs. and low vibration minimizes user fatigue
  • 2531-20: variable speed trigger with lock on button provides unmatched control across 4-speed settings
  • 2531-20: LED light illuminates the work surface to provide maximum visibility on the jobsite
  • 2531-20: pad saver protects against excessive heat buildup to extend the life of the backing pad material
  • 2531-20: sponge pad allows the abrasive to contour to the work surface when working with complex trim profiles
  • 48-80-5320: POWERGRID tear resistant mesh for maximum durability
  • 48-80-5320: only compatible with Milwaukee M12 FUEL orbital detail sander (2531-20)
  • 48-80-5320: open weave design minimizes clogging for a smooth and flawless finish
  • 48-80-5320: durable nylon backing protects against sharp edges, tight corners and tough removal
  • 48-80-5320: reusable and easy to clean for longer life
  • 48-80-5220: hook and loop for secure connection and fast grit swaps
  • 48-80-5320: ideal for wood, metal and plastics
  • 2531-20 includes: one M12 FUEL orbital detail sander, three 80-Grit abrasive, three 120-Grit abrasive, three 180-Grit abrasive, 1 hex wrench, 1 sponge pad, 1 pad saver
  • 48-80-5320 includes: (12) 320-Grit mesh sanding sheets, (1) pad saver
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  • Return Policy

Product Information

Internet # 322890642

Model # 2531-20-48-80-5320

Additional Resources

Shop All Milwaukee

Specifications

Dimensions: H 4.5 in, W 1.99 in, D 8.9 in

Dimensions

Product Depth (in.)

8.9 in

Product Height (in.)

4.5 in

Product Width (in.)

1.99 in

Details

Batteries Included

No

Battery Amp Hours

No Battery

Battery Power Type

Lithium Ion

Battery Size

12-volt

Battery Voltage (V)

12V

Charger Included

Charger Not Included

Color Family

Red

Cordless Tool Type

Detail Sander

Cordless/Corded

Cordless

Included

Other Accessories

Motor Type

Brushless

Number of Total Batteries Included

0

Power Tool Features

LED Light, Lock On Switch, Variable Speed

Product Weight (lb.)

1.67 lb

Returnable

90-Day

Speed (rpm)

14000

Tools Product Type

Power Tool

Warranty / Certifications

Manufacturer Warranty

5 Year Limited

Questions & Answers

I am considering buying this tool, but I am not a fan of mesh sandpaper. Does Milwaukee make other types of sandpaper? Or if not, with the off-brands of sandpaper for this tool stick to the base?
ByJul 27, 2026
1 Answer | 
Answer This Question

Great question! The M12 FUEL Orbital Detail Sander uses a hook-and-loop pad, so yes, you can use other sandpapers, as long as they match the shape and have hook-and-loop backing. Milwaukee’s included sheets are mesh for dust collection, but any compatible H&L type sheet works (off-brand included).

By|Jul 28, 2026


    does any sand paper come in this kit
    ByJul 2, 2026
    1 Answer | 
    Answer This Question

    Yes — the M12 FUEL Orbital Detail Sander Kit includes assorted sandpaper sheets in the box for immediate use.

    By|Jul 6, 2026


      What size paper does this take?
      ByJun 5, 2026
      1 Answer | 
      Answer This Question

      Hey Mike. The M12 FUEL™ Orbital Detail Sander uses 3‑3/4" hook‑and‑loop detail sanding sheets designed specifically for its triangular pad. Milwaukee’s POWERGRID™ mesh sanding sheets are made to match this pad size and shape.

      By|Jun 10, 2026


        The width of the pad is not 1.99 inches, it's 2 and 5/8 inches. This screwed me up because I had a space that needed sanding that was 2 inches.
        ByOct 1, 2025
        0 Answer | 
        Answer This Question

        Will this battery charger recharge all M12 batteries irregardless of their amperage rating?
        BySep 13, 2025
        1 Answer | 
        Answer This Question

        Yes, Milwaukee M12 chargers are designed to recharge all M12 batteries regardless of their amperage rating. This includes compact and extended-capacity batteries. The chargers utilize Milwaukee's REDLINK™ Intelligence to communicate with the battery pack, ensuring optimal charging and protection.

        By|Sep 22, 2025


          Is there a polishing pad for the M12 FUEL 12-Volt Lithium-Ion Brushless Cordless Orbital Detail Sander?
          ByFeb 23, 2025
          1 Answer | 
          Answer This Question

          Hey Bobo! Yes, there is a polishing pad available for the M12 FUEL 12-Volt Lithium-Ion Brushless Cordless Orbital Detail Sander. The relevant accessory is the Sponge Interface Pad (SKU: 48-80-5402), which is designed to contour to curved surfaces and prevent over-sanding of high points. This pad is ideal for sanding contours and profiles and is compatible with Milwaukee Mesh Sanding Sheets.

          By|Feb 25, 2025


            Trying to decide between this and the oscillating tool. Main upcoming project for use is prepping house trim for repainting. Any thoughts on preference?
            ByFeb 18, 2025
            1 Answer | 
            Answer This Question

            Hey there! We recommend if you have a lot of prep work to do go with the M12 Detail Sander and if not too much go with the M12 Multi Tool!

            By|Feb 19, 2025


              Is there an advantage to this sander over the 12v multi tool with the sanding attachment?
              ByDec 29, 2024
              2 Answers | 
              Answer This Question

              Yes noise level and the way it sands

              By|May 28, 2025

                This is orbital action. The multitool is reciprocal.

                By|May 21, 2026


                  Viewing 1-8 of 19

                  Customer Reviews

                  4.6 out of 5

                  • 4.6 out of 240 reviews
                  • 92% recommend this product
                  Filter by:
                  Showing 1-10 of 240 reviews
                  Excellent tool for detail sanding
                  I've had this sander now for a few years and absolutely love it. Originally I bought a corded SurfPrep sander with all the bells and whistles, and if you know what that is you know how great it is. However, I didn't use it enough to justify the cost and I am already invested in the M12 line so this was a natural choice. I'm a carpenter so I primarily use it for detail sanding on cabinets and trim. But I also use it from time to time sanding drywall mud (pair it with a nice light to pickup inconsistencies...you can thank me later). Makes a good amount of dust without a vacuum hookup so probably should wear a mask. I don't use it all day every day so I consider the battery life to be great. The Milwaukee sanding pads work great as you'd expect them to, but if you're looking for more flexibility in profile sanding consider buying SurfPrep pads...you won't be disappointed. The thicker sponge pad that comes with this is OK but a little stiff and will knock back edges if you're not careful. The interface pad is useful but wore out fairly quickly for me. I like the ability to select the speed but it's variable speed already so I tend to leave it on max. Wish it had a belt hook/clip.
                  by
                    • Recommended
                    This customer chose to rate the product and not provide text.
                    by
                    Great sander! I have lots of sanders (Bosch, Fein, Festool...) and this is on par with them in terms of quality. What makes the Milwaukee special is it's size and functions. It can sand in areas that my other sander can't.
                    by
                    This customer chose to rate the product and not provide text.
                    by
                    Very nice sander for a great price! For $99 I got a detail sander battery and charger, Great deal!!!
                    by
                    The Milwaukee M12 Detail Sander is a fantastic tool for anyone tackling small projects or hard-to-reach areas. I recently used it to smooth out some patches around my exterior door where I had to repair some dry rot, and it performed perfectly. The compact size makes it easy to maneuver, and it has plenty of power for detailed sanding jobs without feeling overbearing. If you often find yourself working in tight spaces or touching up repair work, this sander is a real time-saver. Highly recommended.
                    by
                    Great detail sander. I do trim work every day, and this has made my life a lot easier. I used to have to switch out heads on my multitool all the time in order to do detail sanding. Having a dedicated tool just for this task saves me a ton of time. It has great power as well. I highly recommend the sponge adapter.
                    by
                    Powerful and Precise Cordless Detail Sander
                    The M12 FUEL 12-Volt Orbital Detail Sander is a fantastic tool for precise sanding tasks. The brushless motor delivers excellent power, and the cordless design makes it convenient to maneuver. Paired with the XC 4.0 Ah battery, it offers great runtime for most projects. The variable speed control allows for flexibility on different surfaces, and the dust collection system minimizes mess. Ideal for detailed woodworking or refinishing projects. Highly recommend for professionals and DIYers alike!
                    by
                      • Recommended
                      Lots of Features in this Great tool
                      Milwaukee…. M12 12-Volt FUEL Lithium-Ion Cordless Orbital Detail Sander, I’m a big fan of Milwaukee tools, I needed a detail finishing sander and I bought the right one, It is easy to use and has lots of features it is small, very lightweight, it’s very quiet, it has a brushless motor with plenty of power, for light sanding, the coolest feature is it has 4 speeds and it has a variable speed trigger, this (tool only) model came with assorted mesh sanding sheets 80, 120, and 180 and sanding pads (which I like better than sand paper), and a free M12- 2.5AH I love this sander, This sander more than met my expectations.
                      by
                        • Recommended
                        I would NOT recommend this sander at all. I could use the corded sander all day, but this one works for 30 mins tops before it drains the batteries.
                        by
                        Response from Milwaukee ToolApr 12, 2024
                        We appreciate your feedback on your M12 FUEL Cordless Detail Sander, and we will be sure to pass it along to our team. If you have any additional feedback, please reach out to us at social.media@milwaukeetool.com. Thank you! - Milwaukee Tool Social Team
                        • Verified Purchase
                        2 found this review helpful
                        Showing 1-10 of 240 reviews

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                        Product Snapshot

                        Ideal for customers who want precision detail sanding, ensuring faster material removal and scratch-free finish.
                        Designed for effortless use, with ergonomic design and variable speed for precision sanding.
                        Designed for effortless detail sanding, with ergonomic design and variable speed for precision.
                        Ideal for professionals seeking precision and power in a compact, ergonomic design.

                        Power Source Cordless

                        Variable Speed Control

                        Dust Collection System

                        Ergonomic Design

                        Extended Warranty