Dewalt d21805ks gb 2 speed percussion drill 770w 230v dewalt d21805ks gb the dewalt d21805ks gb 2 speed percussion drill has an improved 770w 230v motor and a 2 speed gearbox for increased torque it gives an improved drilling performance over previous models due to its new motor wind and improved ergonomics with a new polymer gear case dewalt d21805ks gb 2 speed percussion drill 770w 230v