Outside caliper is a two legged precision instrument used for measuring or comparing thickness diameter and outside dimensions. The legs are tapered inwards and their ends are thin to make accurate measurement. The size of this caliper is found by taking the perpendicular distance from the center of the rivets to the leg points. If the distance is six inches, it is known as 6” caliper and if it is 8” inches, it s known as a 8” caliper and so on.
Above is the snapshot of Outside caliper, your high precision data measurement instrument.