Cordless Hammer Drill Kit, Voltage 20.0, Battery Included, Chuck Size 1/2 In., Brushless Motor Yes, No Load RPM 0 to 2250, Blows per Minute 0 to 38,250, Max. Torque Not Specified, Max. Power 820UWO, Battery Included (2) Mfr. Model No. DCB205, Cordless Tool Battery Type Li-Ion, Battery Capacity 5.0Ah, Tool Length 7-3/4 In., Tool Weight 4.7 lb., Clutch Style Adjustable, Handle Type T-Handle, Battery Pack Replacement 31AC52