ELECTROSTREAM DRILLING INTRODUCTION: Electro stream drilling (ESD) could be a special version of electrochemical machining adapted for drilling tiny holes (usually but one mm) by mistreatment of high voltages and acid electrolytes. ESD was initially developed within the middle Sixties by the overall power service, Aircraft Engine cluster. The method was fabricated to resolve the issues related to drilling thousands of tiny cooling holes in rotary engine blades. It uses acid solution rather than the salt electrolytes that are usually employed in an Electrochemical machine to drill tiny holes. Electro stream drilling (ESD) method is gaining prominence within the machining of small holes in tough to machine materials employed in the house, aviation, physical science and computers, medical, and automobile industries. This method employs a jet of the charged acid solution for the anodic dissolution of work material. Because the trend towards making smaller or fewer continues, th...