The Porter-Cable 18V drill/driver kit includes a high-torque motor and gear box and generates 440 in. lb. of maximum torque for tough applications. A 1/2-inch metal single sleeve chuck offers excellent bit retention and durability and a 2 position gear box offers flexibility for high speed drilling and driving and low speed for high torque applications. The 32 position clutch with micro adjust torque is great for driving various size screws. It includes 2 (model No. PC18B) batteries, charger, double ended screwdriving bit, and kit box and comes with a 3 year warranty.