...

When one delves into the world of miniature drilling, it becomes evident that size truly matters. The smaller the bit, the more delicate the operation it can perform. It's akin to the sharpness of a well-crafted pencil line versus the broad stroke of a paintbrush. Craftsmen rely on these tiny tools for tasks such as engraving, where precision is paramount. They weave their way through materials with the finesse of a skilled surgeon, each hole a meticulous stitch in the tapestry of their creation.

...

One of the most important factors to consider when choosing a thread tap drill bit is the material it is made of. High-speed steel (HSS) drill bits are commonly used for general-purpose tapping in materials such as steel, aluminum, and brass. They are durable, heat-resistant, and can be sharpened for extended use. For hard materials like stainless steel or hardened steel, cobalt drill bits are recommended due to their superior hardness and heat resistance.

...