DRILL BIT

In everyday French, the drill bit is a Cutting tool designed to drill cylindrical holes in soft Materials, such as Wood, while the Drill bit is reserved for hard materials such as Metal. In Switzerland, however, and particularly in the Horologist (watchmaker), Drill bit is generally used as a synonym for Drill bit. In both cases, the tool takes the form of a shaft fitted with cutting edges and helical flutes that evacuate chips; it rotates under axial pressure to penetrate the material. In horology (watchmaking), where diameters are minute, drill bits reach tiny dimensions and require flawless sharpening as well as high rotation speeds. They are used to drill holes intended to receive Screws, pins, feet of Dial or jewels. The terminological distinction between Drill bit and Drill bit illustrates the regional particularities of horological (watchmaking) technical language, where Swiss usage sometimes differs from standard French. Synonym (Switzerland): Drill bit.