Snips are made in various shapes and sizes for various tasks. The handle can be like those on scissors with finger and thumb holes or like plier handles. Models are available for cutting in straight lines, in curves to the left or curves to the right.
Universal snips can cut in both straight and wide curves.
Aviation snips have compound leverage that reduces the effort required for cutting. Offset snips have jaws that are set at an angle from the handle. Only use snips that are sharp and in good condition. Wear safety glasses or a faceshield and protective gloves when working with snips. Small pieces of metal may go flying in the air and cut edges of metal are sharp.