 We use a power drill for our buffing and sanding operation, but we will actually clean away the old crud. We will follow the steps, a coarse, a medium, and then a fine grit. We will also, when we're done, wax the headlights. They tell you to do that, but we continue to wax the headlights. We will wax headlights on a semi-regular basis. It's part of a service at the shop because we're trying to keep that polish going.