<b></b>Rated Voltage:20V <br>Toolholder: SDS-plus <br>No-load Speed:0-
1400rpm <br>Impact frequency：4500 r/min <br>Drilling diameter: 
22mm <br>Impact energy: 1.7J <br>maximum drilling diameter in 
concrete:22mm <br>including 2x4.0ah battery &amp; charger<b></b><br>