The DeWalt DCD775 18-Volt Cordless 1/2-Inch Compact Hammer Drill Driver Kit has a lightweight and compact design that makes this Hammer Drill easy to use over extended periods because of minimized user fatigue.  The DCD775 has a dual speed range that lets you match the speed to your application for versatility.  This Hammer Drill Driver is compatible with DeWalt's compact Lithium-Ion batteries  for space- and weight-saving power.