Brushless Motor - Powerful & Efficient: Delivers fast, smooth grinding and cutting on metal, wood, and tile. Brushless technology reduces heat buildup for longer tool life Dual-Speed Control： Switch between 2500 RPM and 8500 RPM to handle different materials with optimal performance True Cordless Freedom： 20V lithium battery for indoor/outdoor use, lightweight and maneuverable for overhead or confined spaces Ergonomic Comfort & Control： Anti-slip grip ensures steady handling and reduces fatigue during extended use Battery & USB-C Cord Included： Comes with 4.0Ah lithium battery and USB-C charging cord (adapter sold separately). For optimal performance, pair with LiTHELI charger