To grasp, hold, or manipulate tissue, you may use thumb and forefinger forceps. These forceps do not have ratcheting mechanisms. For example, when performing surgery, thumb forceps might be used to grip or manipulate tissue. There are different types of thumb forceps. Tips are available in flat, serrated, cupped, diamond-dusted, grooved, or toothed versions. Curved, angled, or straight tips are also some types. The handling of tissue requires serrated forceps (also referred to as thumb forceps).