Impact Driver Kit and Light Drive Size 1/4 in Hex Drive Configuration Straight Max Torque 1 500 in-lb Voltage 12 V Brushless Motor Yes Free Speed 3 600 RPM Impact Rated Yes Impacts per Minute 4 000 Impact Sound Level 100 dB Drive Type Standard Number of Speed Settings 4 Collett 1/4 in Hex Cordless Tool Kit Contents (2) Bare Tools (2) Batteries (1) Charger Number of Batteries Included 2 Battery Capacity (2) 2.0 Ah Battery Model No 38D763 Battery Series M12 REDLITHIUM