Whereas a standard rotary polisher simply spins a pad, dual action polishers combine oscillation and rotation to produce a sort of wobble effect -- a circle made with other, smaller circles.

the power and speedy correction of a rotary polisher with the ease of use and safety of a DA to remove deeper swirls and scratches like no other DA. Unlike conventional dual action polishers ...

One of the most important is the type of polisher. There are two main types: rotary and dual action. Rotary polishers are powerful and best suited for experienced detailers, while dual action ...