Delivers the power of air at 365 ft./lb. of max torque. With the IQv intelligent control system, the W5152 can go from max torque to "hand tight" and everything in between. Powerful brushless motor and impact mechanism delivers 550 ft./lb. of nut-busting torque and 365 ft./lb. of max torque. IQv power control system with 4 modes: full power, mid power, wrench tight, and hand tight delivers just the right amount of torque when you need it. Includes: (Qty.) (2) 20V Lithium-Ion Batteries, (1) Charger, (1) Carrying Bag.