A Shallow Bore

  Imagine a large rotor with an ID of 12".  One normally uses an adjustable bore gage, or perhaps an inside rod micrometer, to check the diameter.  But in this case, a hub in the center of the part presents an obstacle.

Assessing Gage Stability

When multiple part measurements show unacceptable variation, it is essential to understand whether it is the manufacturing process, or the measuring process that is at fault.

Economical Choice of Bore Gage Depends Upon Your Application

  Indicating bore gages come in two basic varieties:  adjustable-capacity gages with interchangeable contacts or extensions; and fixed-size gages with plug-type bodies.

Measuring Big: Lessons from the Oil Industry

  In the world of oil drilling there are some pretty big things. It's not just the rigs anchored out in the ocean that are huge; everything that goes along with them seems to get super-sized including the need for gaging.

Striking the Right Chord for Partial Diameters

  Measuring the diameter of a hole is one of the most common measuring tasks in a production environment. And given the kind and number of tolerances for diameters, there are many different gaging techniques available to do these checks.