PORTER-CABLE PC218IDC-2 18-Volt NiCd Drill/Impact Driver 2-Tool Kit Drill/Driver has 2-speed gearbox for tough jobs: High gear provides faster rpm for fast drilling, while low gear offers high torque for heavy duty screwdriving applications The drill/driver's high performance motor and gearbox delivers up to 440 in-lbs of torque Drill/driver's 1/2-inch single sleeve chuck offers excellent bit retention and durability Impact driver delivers 1600 in-lbs high-torque output without kickback Two PORTER-CABLE 18-volt niCad batteries provide extended run time for larger projects