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
The Milwaukee M18 FUEL 15mm is the better dual action car polisher overall, rated 3.5 to 3.1. The Milwaukee M18 FUEL 15mm leads on warranty and features. The Milwaukee M18 FUEL 15mm costs $5.99 less ($254 vs $259.99).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
SPTA 18V Cordless 15mm Kit
#3 in CordlessFull review
A complete cordless 15 mm kit at a low price, for occasional use where there is no outlet nearby.
Amazon $259.99$259.99
Which should you buy?
- Choose the Milwaukee M18 FUEL 15mm for warranty (3-year warranty vs 6-month warranty) and features (constant-speed electronics, cordless or a 20 ft+ cord, lock-on trigger vs brushless motor, cordless or a 20 ft+ cord, lock-on trigger).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every cordless dual action car polisher; a clear win is highlighted. How we rank explains each one.
| Factor weight | Milwaukee M18 FUEL 15mm | SPTA 18V Cordless 15mm Kit |
|---|---|---|
| Overall rating | 3.5/5 | 3.1/5 |
| Correction 30% | 62 15 mm orbit | 62 15 mm orbit |
| Value 25% | 48 $254 | 47 $259.99 |
| Warranty 15% | 50 3-year warranty | 0 6-month warranty |
| Power 10% | 50 18 V battery; cordless makers publish no motor rating (neutral score used) | 50 18 V battery; cordless makers publish no motor rating (neutral score used) |
| Weight 10% | 71 5.2 lb | 50 weight not published (neutral score used) |
| Features 10% | 60 constant-speed electronics, cordless or a 20 ft+ cord, lock-on trigger | 50 brushless motor, cordless or a 20 ft+ cord, lock-on trigger |
Specifications
| Milwaukee M18 FUEL 15mm | SPTA 18V Cordless 15mm Kit | |
|---|---|---|
| Polishing | ||
| Orbit diameter | 15 mm | 15 mm |
| Speed range | 2,650-5,100 OPM | 2,000-4,800 OPM |
| Backing plate | 5 in | - |
| Forced rotation | No | No |
| Power | ||
| Power source | Cordless | Cordless |
| Battery | 18 V | 18 V |
| Batteries included | - | Yes |
| Cord | Cordless | Cordless |
| Brushless motor | Not listed | Yes |
| Controls | ||
| Constant-speed electronics | Yes | Not listed |
| Soft start | Not listed | Not listed |
| Lock-on trigger | Yes | Yes |
| Build | ||
| Weight | 5.2 lb | - |
| Pads or polish included | No | Yes |
| Warranty | 3 years | 6 months |