Look at DARPA's Robust Robotic Hand
Just look at it. "The ARM-H track of DARPA's Autonomous Robotic Manipulation (ARM) program focuses on development of robust, low-cost and dexterous robotic hand hardware. DARPA funded performers to design and build hand mechanisms that could replace the claw-like hands currently used on robots with hands incorporating 3-4 fingers and useable palms. The teams successfully produced hands that can be manufactured for as little as $3,000 per unit (in batches of 1,000 or more), down from the $50,000 cost of current technology."