The Ronix Cordless Chain Saw - Tool Only is a professional-grade tool designed for users who already have Ronix batteries and chargers. It has a Voltage: 20V DC No-load Speed: 0-400/0-1500RPM Chain Bar Length: 6" (150mm) Max cutting capacity: 6" (150mm) Cutting speed: 4.8m/s Weight: 1.1kg