The M1Star MBG mechanical bore gauge from Marposs is designed for manual mechanical use in precision checking of I.D., ovality or taper of through bores, and blind and super blind bores. According to the company’s press release, the gauge features a mechanical measurement system that lasts for more than 10,000,000 measuring cycles and allows interfacing with any dial indicator, digital indicator or pencil probe. Its application range is 0.12$B!&(B1.81" (3$B!&(B00 mm). The gauge also includes a measuring head that allows self-retooling and reconditioning by replacing the removable nosepiece and contacts. Only one master is needed for zero setting.