A Precision Drill Press for Tiny Bits

Anyone who’s worked with even a 1 mm bit knows that while a drill press is all but essential, it isn’t proof against broken bits. Working with a 0.1 mm drill bit seems, therefore, all but impossible, which is why [Mike] of Chronova Engineering built this mechanism to simplify such drilling. The mechanism is an attachment for a milling machine, and in principle it just needs to move the rotating drill bit up and down.