By the means of this Air Depth Collar Gauge, you can easily adjust collar depth while measuring the diameter at a fix distance from the face of an object. It is extensively used in air plug gauges because a person can effortlessly adjust it on plug whenever required. Suitable for calibrating a specific depth, the offered gauge allows efficient measurement of an internal bore (ID). It is made from high grade raw materials and advanced technologies by a crew of experienced professionals. Available in various sizes, shapes and designs, the provided Air Depth Collar Gauge is convenient to handle while using due to its lightweight and compact size.