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I went to the machinery show in LA last year and a German company claimed to have made the smallest drill bits and they were handing out samples. I took a couple of them over to a Taiwanese display where I knew some people and showed them the bits. The guy took one and brought it back a few minutes later and told me that he had drilled a hole through it. I couldn't see it of course so I took it back to the Germans, who examined it under a powerful magnifier. And sure enough......
I went to the machinery show in LA last year and a German company claimed to have made the smallest drill bits and they were handing out samples. I took a couple of them over to a Taiwanese display where I knew some people and showed them the bits. The guy took one and brought it back a few minutes later and told me that he had drilled a hole through it. I couldn't see it of course so I took it back to the Germans, who examined it under a powerful magnifier. And sure enough......
With my luck , just breathing on it would break it.
My father works for a company that makes hear aid parts. He runs the model shpo in the R&D area of the company. He has brought home some drill bits and even screws that are so small i break them just putting them in my hand. when you are drilling holes that are fractions of the human hair that's just too darn small. Don't sneeze!!!
I've heard that story also. Like most, I have a collection of small broken bits. I have found that it is best to chuck the small bits with the shortest length exposed and set the press to stop just after full penetration.
Dono
Small bits and I don't get along. I'm not sure if I should consider it a victory or defeat. I mean, I break it. But at the same time, I no longer can get the job done. It's a cycle of evil...
Ive got a set of needle bits. Ya use a pin vice to spin them. Simply amazing they can make them and actually sharpen em! Not sure what you'd use to re-sharpen them with! Ive used mine for model making.... making holes in the heads for wiring the engine or doing small detail work. Lotta tricks you can do with 'em.
I was just using a .005" diameter end mill at work last week. We were milling graphite in a CNC mill. Oddly enough, these cutters are only $22 each. I have no idea how they make them. They are a little thicker than a human hair, or a sheet of paper.
Making barrel holes for the guns on battleship models and then dribbling flat black down there. I remember getting my Enterprise CV-65 when I was small, I loved that model and my cousin ended up serving on her