Impact Driver, Drive Size 1/4 in Hex, Drive Configuration Straight, Max. Torque 1,450 in-lb, Voltage 12V DC, Brushless Motor Yes, Free Speed 2,850 RPM, Impacts per Minute 3600, Number of Speed Settings 3, Collett 1/4 in Hex, Cordless Tool Kit Contents (1) Bare Tool, (2) Batteries, (1) Charger, Number of Batteries Included 2, Battery Capacity (2) 2.0 Ah, Battery Model No. Mfr. No. DCB122, Battery Series 12V Max, Charger Included Yes, Charger Model Mfr. No. DCB112, Case Included Yes