Calipers typically use a precise slide movement for inside, outside, depth or step measurements. Some caliper types are used for comparing or transferring dimensions.
Dimensional gages and instruments provide quantitative measurements of product or component dimensional and form attributes such as wall thickness, depth, height, length, inner diameter (ID), outer diameter (OD), taper or bore.
Micrometers are instruments for precision dimensional gaging consisting of a ground spindle and anvil mounted in a C-shaped steel frame. Noncontact laser micrometers are also available.
Squares are used to indicate, by visual comparison, whether two surfaces are perpendicular. Most products consist of a simple, fixed standard and a beam and blade with a mutual orientation of 90degrees.
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