This replacement Speed Switch for the DW849 buffer restores precise variable-speed control to your polisher, letting you dial in the right pace for aggressive cutting or gentle finishing with confidence. A worn or faulty speed switch can leave your machine stuck at one speed or unresponsive, so installing a fresh unit brings back the full range of control that makes rotary polishing safe and effective. Designed to fit the DW849 buffer, it's a straightforward repair that extends the working life of a machine you rely on, saving you from replacing an otherwise dependable tool. Keeping your polisher in top condition means smoother correction and better results on every job. Swap in this speed switch and get your DeWalt buffer back to smooth, controllable, professional-grade performance without missing a beat.