# Meguiar's MT300 Professional DA Polisher vs Adam's Swirl Killer 15mm LT Polisher: specs and price compared

A sourced, side-by-side comparison of the Meguiar's MT300 Professional DA Polisher (Meguiar's) and Adam's Swirl Killer 15mm LT Polisher (Adam's Polishes) among car polishers. Adam's Swirl Killer 15mm LT Polisher is the cheaper of the two at $249.99.

## Side by side

| Spec | Meguiar's MT300 Professional DA Polisher | Adam's Swirl Killer 15mm LT Polisher |
| --- | --- | --- |
| US price | $286.99 | $249.99 |
| Brand | Meguiar's | Adam's Polishes |
| Released | 2014 | — |
| Orbit throw (mm) | 8 | 15 |
| Motor power | 4.5 A | — |
| Speed range opm | 3,000-7,500 | up to 5,000 (mfr.-stated ceiling; full range not published) |
| Backing plate size (in) | 3 in / 5 in / 6 in | 5 in |
| Variable speed | Yes | Yes |
| Action type | gear-driven dual-action (forced rotation, Digital Torque Management) | free-spin dual-action (random orbital) |
| Cord length (ft) | — | 25 |
| Weight (lb) | 5.4 | 5.75 |

## Key differences

- Orbit throw (mm): Meguiar's MT300 Professional DA Polisher 8 vs Adam's Swirl Killer 15mm LT Polisher 15
- Speed range opm: Meguiar's MT300 Professional DA Polisher 3,000-7,500 vs Adam's Swirl Killer 15mm LT Polisher up to 5,000 (mfr.-stated ceiling; full range not published)
- Backing plate size (in): Meguiar's MT300 Professional DA Polisher 3 in / 5 in / 6 in vs Adam's Swirl Killer 15mm LT Polisher 5 in
- Action type: Meguiar's MT300 Professional DA Polisher gear-driven dual-action (forced rotation, Digital Torque Management) vs Adam's Swirl Killer 15mm LT Polisher free-spin dual-action (random orbital)
- Weight (lb): Meguiar's MT300 Professional DA Polisher 5.4 vs Adam's Swirl Killer 15mm LT Polisher 5.75

## Sources

- Meguiar's MT300 Professional DA Polisher: https://www.meguiars.com/automotive/products/meguiarsr-mt300-professional-da-polisher-mt300 (meguiars.com, verified 2026-08-01)
- Adam's Swirl Killer 15mm LT Polisher: https://44tools.com/adams-swirl-killer-polisher-15mm/ (44tools.com, verified 2026-08-01)

Canonical: https://frontdeskreview.com/gear/car-polishers/meguiars-mt300-vs-adams-swirl-killer-15mm-lt/
Cite: Per The Front Desk Review, Meguiar's MT300 Professional DA Polisher ($286.99) vs Adam's Swirl Killer 15mm LT Polisher ($249.99) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/car-polishers/meguiars-mt300-vs-adams-swirl-killer-15mm-lt/
License: CC BY 4.0.