Gage Tip of the Month

November 2018

For buttress casing, API requires certain inspections that can align with Gagemaker’s recommended best practices. Do a 1st article full inspection, including using an optical comparator and corresponding overlay, at least once per shift / per machine setup based on your QMS program.  During full production runs, use the corresponding groove width Go/No Go gage […]

5B Update: Angle & Form

API 5B 5.6 ANGLE & THREAD FORM MEASUREMENT Per API 5B 5.6.2, thread form and angles “shall be assessed with an Optical Comparator/Profile Projector[…]” Further, 5.6.4 requires “comparing the thread profile image with that of a toleranced overlay.”  Mitutoyo Optical Comparator and Gagemaker Overlay For all 5B threads listed under section 4.9, measuring form and angle are now mandated. […]

Thread Form Profiles

Thread form accuracy is important if two connections are to make-up properly.  Using a Thread Profile Gage is a quick way to check your threads for proper form and pitch. Thread form is defined as its profile in an axial plane for a length of one pitch.  Simply place the correct form into the threads and by […]