Layout and spring calipers use two adjustable legs to measure hard-to-measure dimensions or long distances. Calipers with legs extending outward are for inside measurements and calipers with legs that are pointed inward are for outside measurements. These legs are adjusted to the feature being measured, and the distance between the legs is checked with a ruler or other measuring tool. Dividers are used as scribing compasses and have two legs with sharpened points for marking arcs or circles on the surface of a workpiece. One leg of the divider sits in a dimple created in the workpiece surface, while the other leg turns around that leg and presses against the material to create a mark. These tools are most frequently used in metalworking and drafting applications.