I've got the 14 volt version of this drill and they are awesome.
http://www.sears.com/shc/s/p_10153_12605_00923021000P
Two-piece magnet motor produces 400 In./Lb. of torque to power through the toughest jobs, This 18volt 1/2 In. driver drill is designed to drill into wood, plastic, mild steel and aluminum, Compact size and lightweight design (4.4 Lb.) reduces "end-user" fatigue and fits easily in tight spaces"
Professional 5-Year Limited Warranty extends to the original purchaser of this Hitachi Product. Select Hitachi products are warranted to the original purchaser to be free from defect in materials and workmanship for a period of five (5) years from the original purchase date. Please consult Hitachi's website
www.hitachipowertools.com or call 1-800-829-4752 to locate your nearest service facility for warranty and non-warranty service on a Hitachi product.