This SDS Max demolition hammer is powered by 2 x 40V batteries to deliver 20.9J impact energy to the brushless motor The Makita HM002GD202 is an extremely powerful demolition hammer powered by 2 x 40V XGT batteries. Though powerful, it has a compact design for ease of use. It has a brushless motor, 12 x bit angle settings and vibration control for greater user comfort. Constant speed control means it performs well even in tough applications. Features: Powered by two 40Vmax XGT li-Ion batteries in series Soft start, constant speed control and a variable speed control dial Auto-Start Wireless System (AWS) connects to compatible dust extractors with Bluetooth. The dust extractor automatically runs while the switch is on Brushless motor for optimum power output LED job light Soft no-load function automatically reduces the motor speed during idling to suppress the vibration of the machine body Anti-vibration housing and AVT for reduced operator fatigue 12 x bit angle settings Slide lever for trigger lock-on/ lock-off Compact design for high portability Comes with: 2 x 2.5Ah batteries ADP10 XGT to LXT adaptor XGT twin-port fast charger Bull point chisel Bit grease Side handle Cloth Carry case Specification: Impact energy: 20.9 J Blows per minute: 950 - 1,900 bpm Bit Angle Setting: 12 Stage Vibration: Chiselling: 8.0 m/sec² Vibration K factor: 1.5 m/sec² Noise sound pressure: 92 dB(A) Noise sound power: 103 dB(A) Noise K factor: 3 dB(A) Net weight: 12 - 13.3 kg Voltage: 80V (40Vx2) Shank: SDS Max