what different 8mm, 12mm, 15mm, 21mm Dual Action (D/A) car polisher? how to use them?

Different sizes of Dual Action (D/A) car polishers—8mm, 12mm, 15mm, and 21mm—refer to the size of the orbital throw or the distance the polishing pad moves in its elliptical orbit. Each size offers different advantages and is suited to specific tasks in the polishing and detailing process. Here’s a comparison of the different sizes and how to use each effectively:

1. 8mm Dual Action (D/A) Polisher

# Characteristics:

- Orbit Size: 8mm throw.

- Cutting Power: Lower cutting power, ideal for light correction and finishing.

- Speed Control: Generally has lower maximum speeds compared to larger models.

- Use Case: Best for delicate surfaces, finishing, and light polishing.

# Advantages:

- Swirl-Free Finishing: The smaller throw minimizes the risk of creating swirl marks and is great for achieving a high-gloss finish.

- Precision Work: Suitable for detailed work on small or intricate areas where a larger polisher might be too aggressive.

# How to Use:

1. Preparation: Clean the surface and select an appropriate polishing pad and compound for the task.
2. Application: Apply the compound to the pad and spread it over the surface before turning on the polisher.
3. Polishing: Use light to moderate pressure, working in small sections with overlapping passes. The 8mm throw makes it easy to maneuver and control, especially on curved or detailed areas.
4. Finishing: Use the polisher at lower speeds for a final, high-gloss finish.