This grinder delivers 13 Amp power with a no-load speed of 9000 RPM. It's part of our PERFORM and PROTECT product line to help keep users safe. The Kickback Brake engages when a pinch, stall, or bind-up event is sensed and shuts the grinder off. Battery and charger sold separately. The DEWALT DCB609 FLEXVOLT Battery pack changes voltage when you change tools. It Powers a new line of 60-Volt MAX Brushless tools and 120-Volt MAX Brushless tools. This pack is also backwards compatible with 20-Volt MAX tools and chargers.