Why do we use “finger condoms” when working on parts?

The real name of the so-called “finger condoms” are actually called finger cots. Finger cots are small, tube-like sheathes that are designed to securely cover the lower portion of fingers. Typically, they cover the first knuckle and end between the first and second knuckles. This sort of finger protection is useful in other fields in addition to medicine. Anyone who comes into contact with delicate electronic equipment should be concerned about exposing that equipment to contamination from human skin and oils. Static electricity can also build up on human hands, and can pose a danger to sensitive electronic equipment. They are designed to be both durable and resistant to the buildup of static electricity.