How Drill Bits Are Made
Drill bits are cutting tools with circular cross-section used to remove material to create holes. Drill bits come in many sizes and shape and can create different kinds of holes in many different materials.
Drill bits are attached to a drill in order to create holes. The drill powers them to cut through the workpiece, typically by rotation and will grasp the upper end of a bit called the shank in the chuck.
To drill appropriate hole in any material, the correct type of drill bit must be used. It must be used correctly and be properly sharpened.
In this video you can see the manufacturing process of different types of drill bits.
Check it out!