Stolen from the internet-source unknown
As we all know the Swiss are known for being some of, if not the best watchmakers in the world. They've been making watches for hundreds of years, and the craft of watchmaking is passed down from generation to generation.
Now, back in the 1980's when the Japanese were making advances in and becoming the truly dominant force in the electronics industry, they realized that some of the tools that they used for electronics manufacturing may also serve the Swiss watchmakers well.
Never one to not take advatage of a potential opportunity, a Japanese company asked their engineers to design the smalles drill bit they could, and the company would market the "smallest drill bit in the world" to the swiss watch manufacturer.
So they did.
The Japanese company sent the "smallest drill bit in the world" to the Swiss company with a letter declaring that the drillbit was not only the smallest, but also the most durable drillbit of its type.
The swiss company promptly sent the drillbit back 2 days later to the Japanese company with a hole drilled right down the center, end to end.