This DEWALT 12-Volt MAX Lithium Ion Combo Kit gives you a cordless screwdriver and impact driver - 2 compact and lightweight tools that stand up to the job and get into small spaces that traditional drill/drivers don't. You also get maximum leverage to make the most of the screwdriver's 160 Unit Watt Output and the impact driver's 79 in. lbs. of torque. Lightweight and easy to use, the 1/4 in. chucks can be loaded with 1-hand.