1. RO Polisher (Rotary Polisher)
 
• Motion: Pure concentric rotation, no orbital movement.
 
• Cutting power: The strongest. Great for removing deep scratches and sanding marks.
 
• Heat & Safety: Generates high heat easily. High risk of burning paint or creating swirl marks. Not beginner-friendly.
 
• Application: Heavy paint correction, major renovation work for experienced detailers.
 
2. DA Polisher (Dual Action Polisher)
 
• Motion: Random orbital + rotation, free dual-action movement.
 
• Cutting power: Mild and gentle.
 
• Heat & Safety: Low heat output, extremely safe on paint. Rare to leave swirl marks. Ideal for beginners.
 
• Application: Regular car maintenance, light defect removal and final finishing.
 
3. GA Polisher (Geared Dual Action Polisher)
 
• Motion: Gear-driven forced orbital + rotation.
 
• Cutting power: Medium to strong, between RO and DA.
 
• Heat & Safety: Moderate heat and operational risk. Stable performance with few swirl marks.
 
• Application: All-round professional use, covering heavy correction to fine finishing.
 
Quick Comparison
 
• RO: Max cutting power | Highest risk | For heavy correction & pros
 
• DA: Low cutting power | Safest | For daily use & beginners
 
• GA: Balanced cutting power | Medium risk | All-purpose professional polisher