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
The SPTA 18V Cordless 15mm Kit is the better dual action car polisher overall, rated 3.1 to 2.8. The SPTA 18V Cordless 15mm Kit leads on value and features. The SPTA 18V Cordless 15mm Kit costs $416.47 less ($259.99 vs $676.46).
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.
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.
Amazon $676.46$676.46
Which should you buy?
- Choose the SPTA 18V Cordless 15mm Kit for value ($259.99 vs $676.46) and features (brushless motor, cordless or a 20 ft+ cord, lock-on trigger vs brushless motor, cordless or a 20 ft+ cord).
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 | SPTA 18V Cordless 15mm Kit | RUPES BigFoot HLR15 iBrid Kit |
|---|---|---|
| Overall rating | 3.1/5 | 2.8/5 |
| Correction 30% | 62 15 mm orbit | 62 15 mm orbit |
| Value 25% | 47 $259.99 | 0 $676.46 |
| Warranty 15% | 0 6-month warranty | 0 warranty not published, scored as none |
| 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% | 50 weight not published (neutral score used) | 100 3.8 lb without battery |
| Features 10% | 50 brushless motor, cordless or a 20 ft+ cord, lock-on trigger | 35 brushless motor, cordless or a 20 ft+ cord |
Specifications
| SPTA 18V Cordless 15mm Kit | RUPES BigFoot HLR15 iBrid Kit | |
|---|---|---|
| Polishing | ||
| Orbit diameter | 15 mm | 15 mm |
| Speed range | 2,000-4,800 OPM | 3,000-5,000 OPM |
| Backing plate | - | 5 in |
| Forced rotation | No | No |
| Power | ||
| Power source | Cordless | Cordless |
| Battery | 18 V | 18 V |
| Batteries included | Yes | Yes |
| Cord | Cordless | Cordless |
| Brushless motor | Yes | Yes |
| Controls | ||
| Constant-speed electronics | Not listed | Not listed |
| Soft start | Not listed | Not listed |
| Lock-on trigger | Yes | Not listed |
| Build | ||
| Weight | - | 3.8 lb (without battery) |
| Pads or polish included | Yes | Yes |
| Warranty | 6 months | - |