Air gaging allows you to measure many jobs faster, more conveniently, and more accurately than by using other gaging methods. In the measurement of hole conditions, air gaging is unsurpassed for speed and accuracy, while in checking any dimensional characteristic, air offers sufficient magnification and reliability to measure tolerances well beyond the scope of mechanical gages.
Air gages also effectively measure all common types of dimensions and are particularly suited to checking dimensional relationships. Some of these are taper, parallelism, squareness, straightness, and center distance. Match gaging, which permits the selection of mating parts with a specified amount of clearance or interference, is easily accomplished with just one reading on one dial.