7.2v Impact 1800rpm 22nm. Note: Package includes tool, Battery: ACB-7220M, Charger: ACC-7220 in a molded case. Specifications: Battery Charging Time: 1-hour auto cut-off Impacts Per Minute: 4600 Max. Torque - ft-lbs: 16 Max. Torque - Nm: 22 Output Drive/Hex - in: 1/4 Speed - No Load rpm: 1800 Voltage (V): DC-7.2 Weight - lb: 2.2