19.2v 2500rpm 146nm 1/4hex. Note: Package includes tool, Battery: ACB-1920M, Charger: ACC-1920 in a molded case. Specifications: Battery Charging Time: 1-hour auto cut-off Impacts Per Minute: 3300 Max. Torque - ft-lbs: 108 Max. Torque - Nm: 146 Output Drive/Hex - in: 1/4 Speed - No Load rpm: 2500 Voltage (V): DC-19.2 Weight - lb: 4.9