Bosch 34618 18-Volt 1/2-Inch CompactTough Drill/Driver Kit Improved Performance - Up to 150 (11%) more RPM and 80-inch-pounds (up to 26%) of torque than current models Single Sleeve 1/2-inch chuck - for one handed bit changes, increased drill bit capacity for versatile applications 20+1 Clutch - for precise driving applications Newly Designed Handle Grip - for extended comfort and control Variable Speed Trigger - for complete control