Drill bits

Project: Drill bits
Vitamins: Tool steel rods
Materials: Tool steels
Transformations: Cutting
Tools: Metal lathes, Grinders, Drill bit sharpeners
Techniques: Grinding


Drill bits are cutting tools used to remove material to create holes, almost always of circular cross-section. Drill bits come in many sizes and shapes and can create different kinds of holes in many different materials. In order to create holes drill bits are usually attached to a drill, which powers them to cut through the workpiece, typically by rotation. The drill will grasp the upper end of a bit called the shank in the chuck.