Milwaukee Electric Tools 2648-20 M18 Random Orbit Sander

The Verdict

If you’re already invested in Milwaukee’s M18 battery platform, the 2648-20 is the cordless random orbit sander you’ve been waiting for. If you’re not, it might still be worth switching — but let’s talk about what you’re actually getting first.

What’s in the Box

This is a bare tool — no battery, no charger, no dust bag. You get the sander body, a side handle, and a paper punch. That’s it. The 5-inch hook-and-loop backing pad is already attached. If you’re new to M18, factor in the cost of at least one 5.0Ah battery and charger before you commit.

Performance: Where It Shines

The headline here is the brushless motor pushing 5,000 to 10,000 OPM with a 5mm orbit. That’s a serious cut — this isn’t a finishing-only sander. On a recent cabinet refinishing job, it stripped old lacquer and paint without bogging down where my old corded Porter Cable would have stalled.

The variable speed dial sits right at the base, easy to adjust mid-project. I ran it at 3-4 for sanding between coats, cranked it to max for material removal. The lock-on switch is a small but massive quality-of-life feature — no more holding the trigger for 30 minutes straight.

Dust collection is the weak point. The onboard canister catches maybe 60% of what you’d get with a corded sander hooked to a vac. The good news: there’s a dust port on the back that connects to Milwaukee’s vacuum attachment (sold separately). If you’re doing serious finish work, budget for that accessory. One reviewer noted: “The dust canister is basically useless for fine sanding. Hook it to a shop vac and it’s a different tool entirely.” That matches my experience exactly.

Build Quality and Ergonomics

Milwaukee’s build quality is consistently strong, and this is no exception. The rubber overmold grip is comfortable, and the tool feels solid in hand. But there’s a balance issue — the battery mounts at the rear, making it noticeably nose-heavy. It’s fine for benchtop work, but overhead sanding (ceilings, cabinet bottoms) will tire your arm faster than a corded equivalent.

Battery life is respectable: about 35-40 minutes of continuous sanding on a 5.0Ah battery. That’s enough for most single-day projects, but keep a spare charged if you’re doing a full furniture refinish.

What Buyers Say

The 4.7-star rating holds up across 235 reviews. Common praise centers on power and speed: “This thing eats through material. I sanded a full dining table top in 15 minutes.” Several reviewers specifically mention it replaced their corded sander entirely.

The most frequent complaints? Dust collection without a vac, and the fact that it’s bare tool only. One review summed it up: “Great sander, but Milwaukee nickel-and-dimes you on the dust system.”

Who Should Buy This

Buy it if: You’re already on the M18 platform, you do regular woodworking or refinishing projects, and you want cordless convenience without sacrificing power. It’s also ideal for contractors who need to move between rooms without dragging a cord.

Skip it if: You’re a weekend warrior doing one project a year — a quality corded sander at half the price will serve you fine. Also skip if you hate managing dust; without a shop vac, this gets messy fast.

FAQ

Can I use any 5-inch sanding disc? Yes, standard 5-inch hook-and-loop discs work. Just match the 8-hole pattern for dust extraction.

Does it come with a battery? No. This is bare tool only. Budget $100-150 for battery and charger if you’re new to M18.

Is the dust port compatible with standard shop vacs? Not directly — you’ll need Milwaukee’s dust port attachment (49-90-2770) or an adapter.

The Verdict

4.6/5 — Buy it if you’re in the M18 ecosystem and do serious sanding work. Skip it if you’re corded-happy or dust-sensitive.

The Milwaukee 2648-20 delivers genuine power in a cordless package, with the speed control and orbit to handle everything from paint removal to fine finishing. The dust collection shortfall and bare-tool pricing keep it from perfection, but for the right buyer, this is a genuinely excellent tool that replaces a corded sander without apology.

Where to Buy

👉 Check Price on Amazon →

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Last updated: 2026-08-06. Ratings and prices current as of review date. Verify on Amazon before purchasing.