Used for metal working, jewelers and hobbyists It has a spring action in the handle to keep the jaws open The insides of the jaws are serrated and are closed by turning the wing screw The jaws measure approximately 1 1/4" (31 mm) wide and open to 1" (25 mm) It measures approximately 4" (101 mm) long Newer versions of the item shown may be shipped, as a result, there may be a slight variation in color and design.