Many theories have surfaced on exactly who has machined the world's smallest hole. The topic has been debated around the globe. But Makino has done it in Japan on a communications /fiber optic part -a stunning 0.00044 inch finished hole diameter, and was cut on the Makino EDGE2 Sinker EDM machine...
The whole industry seems to be discussing this topic. Here’s what Modern Machine Shop has to say about "Tool System Considerations For High Speed Machining". TOOL SYSTEM CONSIDERATIONS FOR HIGH SPEED MACHINING The whole industry seems to be discussing...