Bosch CLPK23-180 18-Volt 2-Tool Lithium-Ion Combo Kit,Bosch,CLPK23-180" /> 36618 18-volt Litheon drill driver has a tough design for increased maneuverability in tight spaces and less user fatigue Ratcheting, single-sleeve 1/2-inch chuck for one-handed bit changes and bigger applications State-of-the-art lithium-ion battery technology coupled with Bosch's proprietary ECP (Electronic Cell Protection) system 25618 18-volt Litheon impact driver features high-performance motor, all-metal gears, and compact design Built-in LED lights for working in dark or enclosed areas