Micro-Drilling: 9 Questions to Answer Before Beginning ...
3. How Will You Hold the Micro Tool? Basically, micro-drills are made one of two ways: as a "wire" in which the shank diameter is the same as the drill diameter, and as a standard shank tooling, which uses a 1 / 8 -inch or 3-mm shank diameter regardless of the drill tip size.The wire drill has cost advantages because it's less expensive to manufacture; however, it requires a range of ...