If you use your click rule often but need to measure larger projects, purchase an extra extension.
* Extension piece measuring 12 inches
* A click rule has tactile marks on the measuring device and makes a click sound as you move the measuring tool to indicate the length or depth of an object such as wood, a hole or other project
* Measure precisely to 1/16 of an inch
Note: Two products are shown in the photograph. The 12" extension is the larger of the two.