What is a jenny caliper?
Jenny calipers are sometimes called odd leg calipers, oddleg jennys or hermaphrodite calipers.
A jenny caliper works in a similar way to a compass. One end is set in a fixed location, and the other is used to scribe or measure.
They are used to draw a line a set distance from the edge of a part but are also useful for locating the centre of a workpiece.
Jenny calipers are primarily used with parts made of metals such as steel, but can also be used with glass and hard plastics.
Oddleg calipers are a cross between a divider and an outside caliper, as they have one leg of each of these tools.
For more information, see our page: What is an outside caliper?
Jenny calipers have either a spring joint or a firm joint.
Some also have an adjustable point which increases the capacity of the tool.