Called the Digital Optical Caliper, the instrument eliminates the need to manually measure sections.  

“The Digital Optical Caliper is a highly specialized, portable ‘plug-and-play’ gauge designed primarily for use in the roughing and intermediate areas of the mill and can be moved between different locations along the mill. The system is capable of measuring rounds, ovals, flats, and square sections with precision, eliminating the need for mill personnel to approach the rolling line during production,” the company said. 

Primetals Technologies said the first unit was successfully installed in August at an unidentified U.S. mill.