FLEX 5" Random Orbital Sander, Tool Only delivers class-leading speed along with exceptional runtime for heavy-duty sanding applications. Activate turbo mode to unleash a class-leading 13,000 OPMs for fast and aggressive material removal. This sander provides exceptional runtime, with up to 30 minutes of continuous operation on Speed 3, based on a 3.5Ah Stacked Lithium battery (sold separately). Its low-profile design ensures easy maneuverability and control, while durable construction, including a dust and water-resistant switch, extends tool life. This cordless sander features the FLEX Stacked Lithium Advantage, ing battery power, runtime, and charging capability (battery and charger sold separately). Model Number: FX3411-Z