Milwaukee M18 FUEL 15mm
#2 in CordlessFull review
A cordless 15 mm polisher for anyone already on the Milwaukee M18 battery platform.
Amazon $254$254
15 mm18 V battery5 in
3.6/5
A cordless 21 mm polisher for large vehicles, for anyone already on the Milwaukee M18 platform.
- 21 mmOrbit
- 2,400-4,500 OPMSpeed
- 18 V batteryPower
- 3 yearsWarranty
Check price at Amazon$254.99
Price checked November 9, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- 21 mm orbit with no cord, for large panels anywhere
- Runs on any M18 battery you already own
Cons
- Bare tool: battery and charger cost extra
- Maker publishes no weight
The Milwaukee M18 FUEL random orbital polisher family
Every Milwaukee M18 FUEL random orbital polisher model we rank, smallest first. Ratings compare each against its own type.
| Model | Orbit | Rating | Price |
|---|---|---|---|
| Milwaukee M18 FUEL 15mm | 15 mm | 3.5/5 | $254 |
| Milwaukee M18 FUEL 21mm (this one) | 21 mm | 3.6/5 | $254.99 |
How it scores
The rating comes from 6 measured or published factors, each scored 0-100 against fixed reference points for its type. How we rank explains each one.
Specifications
| Model number | 2685-20 |
|---|---|
| Polishing | |
| Orbit diameter | 21 mm |
| Speed range | 2,400-4,500 OPM |
| Backing plate | 6 in |
| Forced rotation | No |
| Power | |
| Power source | Cordless |
| Battery | 18 V |
| Cord | Cordless |
| Brushless motor | Not listed |
| Controls | |
| Constant-speed electronics | Not listed |
| Soft start | Not listed |
| Lock-on trigger | Not listed |
| Build | |
| Pads or polish included | No |
| Warranty | 3 years |
Alternatives in this type
SPTA 18V Cordless 15mm Kit
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A complete cordless 15 mm kit at a low price, for occasional use where there is no outlet nearby.
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RUPES BigFoot HLR15 iBrid Kit
#4 in CordlessFull review
A light cordless 15 mm polisher sold complete with batteries, for mobile professionals who polish away from an outlet.
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Compare
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