Shop for Power Tools at The Home Depot. The DeWALT DWP849X 7-inch/9-inch variable speed polisher has a powerful, 12.0-amp, all ball-bearing construction motor for long life and durability. It has electronic control that maintains specified speed under load delivering the desired finish results. The conveniently located variable speed dial lets user set maximum speed from 0-600/3500 rpm for different materials and applications. It also has a variable speed trigger allows user to control speed from 0 to dialed maximum setting easily. It has heat-treated, precision-cut steel gears for smooth operation and external brush caps for easy servicing. The large spindle lock button allows for easy and quick backing plate changes. It also features a Wool Ingestion Shield that eliminates wool ingestion increasing tool life and reducing service costs and a non Mar rubber gear case cover that reduces surface imperfections and improves gripping surface. Includes Polisher, hook and loop backing pad bale and straight side handles.