The screwdriver is perhaps the simplest tool, yet if we use the wrong one, we can damage or, as it's commonly known, "strip" the screw we're trying to fasten or remove; we could even injure ourselves. Screwdrivers first appeared in the early 15th century. Since then, the basic idea hasn't changed much, but the tips have evolved as more electronic devices and electrical machines with increasingly sophisticated screws have emerged. The parts that make up a screwdriver can be seen in Figure 1.
Handle: Can be made of different materials such as wood, PVC, and other plastic resins. It is very important to select an insulating one if working in electrical environments to prevent accidents. This is the part by which we hold the screwdriver, and sometimes they have designs that facilitate grip.
Core: It is the center of our tool, connecting the handle to the body; therefore, it must be of high quality to ensure strength.
Body: Also known as the shaft, this is the part that holds the most important element: the tip. Its thickness and length vary; some are flexible to reach difficult places.
Tip: Also known as the head, it is the most important part because its shape must match the screw to turn it. When the tips are black, it means they have protection against oxidation and greater precision. Some screwdrivers have interchangeable tips, which allows for a single body with multiple tips that we can use according to our needs. The most common tip types are found in Figure 2.
