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

Laser micrometers measure extremely small distances using laser technology

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.

Thickness gages are used to make precise dimensional measurements on a wide variety of coatings and materials including steel, plastic, glass, rubber, ceramics, paint, electroplated layers, enamels, etc

Bore and ID gages are designed for internal diameter dimensional measurement or assessment.

Height gages are used for measuring the height of components or product features.

Air gages use pneumatic pressure and flow to measure or sort dimensional attributes.

Plug and pin gauges are used to compare hole and slot dimensions or locations to specific tolerances. This product area includes go gauges and no-go gauges. 

Inspection, layout and gaging accessories include probes, sensors, hand tools, styli, contact tips, supplies and other components for dimensional measurement, inspecting, marking, layout or other manufacturing or machine shop applications.

Fixed gages are designed to access a specific attribute based on comparative gaging.

Snap gages are used in production settings where specific diametrical or thickness measurements must be repeated frequently with precision and accuracy.

Instrument calibration services test equipment and calibrate them to various standards.  

Brake and clutch parts and accessories are products related to brakes and clutches.

Depth gages are used to measure of the depth of holes, cavities, or other component features.