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      12-23-2012, 06:02 PM   #11
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Drives: 370z & 135i
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Here's a great article about it.

also, it's important to note that there are different mechanisms that drive these polishers. I use a PC7424, which is a passive dual-action polisher. It has a motor that oscillates the head, but the spinning action is a secondary effect of that primary motor.

Other polishers, like the Griot's (I believe) are true dual-action polishers in that they have an active link to the motor which guarantees you get the same action regardless of the amount of pressure you're putting on the pad.
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