There are various types of cutting knives or blades that are commonly used in electronics, depending on the specific application. Here are a few examples:
Precision knives: These are small, sharp knives with a pointed blade that are used for precise cutting of small electronic components and PCBs.
Razor blades: These are extremely sharp and are often used for cutting thin materials like plastic and film.
It's important to always use the appropriate cutting tool for the task at hand, and to handle knives and blades safely to avoid injury.