Starrett 84MZ 161 6J Dial Bore Gauge, 127 206.37 mm Range, 0.002 Graduation

Two centralizing plungers provide accurate tool alignment The housing and knurled handle are aluminum for light weight and good balance Gradient spacing of 0.002 mm Hardened tool steel contact points for wear resistance Dial indicators have jewel bearings for sensitivity, furnished in finished wood case All contacts and centralized plungers are of hardened tool steel for wear and spring-loaded for sensitivity An adjustable range screw and two centralizing plungers provide accurate, three-point contact for tool alignment in larger bores