Make fine-tuned adjustments on small, delicate components, such as electronics, miniature models, and microscopes. These screwdrivers give you better control than a standard screwdriver to avoid stripping tiny screws or cracking fragile materials. Press the end of the handle with your palm to apply constant pressure while turning the body of the screwdriver with your fingertips. They are also known as precision and miniature screwdrivers.