Features Auto-Start Wireless System (AWS) connects to compatible dust extractors with Bluetooth - the dust extractor automatically runs while the switch is on Active Feedback Sensing Technology (AFT) shuts down the tool if the rotation speed suddenly slows down Anti-vibration housing and AVT for reduced operator fatigue Brushless motor Variable speed Electric brake Soft start Constant speed control Torque limiter LED job light "Soft no load" function automatically reduces the motor speed during idling to suppress the vibration of the machine body 2-mode operation: rotation with hammering / hammering only Specification Voltage: 40v XGT Max. in Concrete (TCT Bit): 40 mm Max. in Concrete (TCT Core): 105 mm Optimum Drilling Range: 18 - 25mm Impact Energy: 8.0 J Shank: SDS Max Blows per Minute: 1450 - 2900 bpm No Load Speed: 250 - 500 rpm Net Weight: 7.4 - 8.2 kg NOISE & VIBRATION Noise Sound Pressure: 91 dB(A) Noise Sound Power: 102 dB(A) Noise K Factor: 3 dB(A) Vibration K Factor: 1.5