Ingco IngcoCordless Impact / Hammer Drill / Lithium - Ion 2.0A With Spare Battery

The design of a cordless drill requires its use to have a clear advantage over its hand tool equivalent along with being able to perform in ways its corded counterpart could not.
 Cordless drills must have power to generate necessary amounts of torque for what are deemed average use functions in a quicker and significantly easier manner than a hand tool. Durable and reliable enough to with stand prolonged repeated use without failure or harm to the user. Markings and labels on the tool must be adequate enough to allow an inexperienced average person to understand and use. 
Battery life and recharge time should optimize to be as long and short (respectively) as possible with 2 hour for each being a reasonable standard. Cordless drills must provide sufficient power while being portable and lightweight in order to perform functions that mandate use in areas where corded or pneumatic drills are an inconvenience.