Cordless Hammer Drill Voltage 12V Cordless Drill Class Compact Chuck Size 3/8 in Drilling Capacity in Concrete Not Applicable Number of Speed Settings 2 Number of Clutch Settings 20+1 Hammer Maximum Working Torque 300 in-lb Maximum Blows per Minute 26 250 bpm Minimum Blows per Minute Not Applicable Brushless Motor Yes Cordless Tool Kit Contents (1) Belt Clip (1) Four-Tip Bit Holder (1) GSB12V-300 12V Max Brushless 3/8 in Hammer Drill/Driver (4) Impact Tough(TM) Bits