The 40V max XGT Brushless 1-9/16" AVT Rotary Hammer Kit (GRH05M1) is a cordless concrete solution designed for heavy-load applications. It delivers the power, speed, and run-time for corded demands, without the cord. The Makita-built brushless motor, along with the 40V max XGT battery, combines to drill faster than corded models. Constant speed control maintains drilling performance. AVT is a counterbalance system along with vibration-absorbing handles that work to reduce vibration. AWS Capable for wireless power-on/off communication between tool and extractor.