Dial with symmetrical division (±50 μm), reset through button
placed above the dial. The measuring rod is mounted on three
ball bearing guideways that make virtually both frictions and
clearances during travel equal to zero. The lever and the gear
mobile parts are mounted on rubies that guarantee instrument
accuracy and long life. The measuring pressure is constant
over the whole measuring range. Device marker balanced with
small inertia. Suitable for high precision testing, both in the
inspecting room on universal stands and bore gauges and in
workshop on multi-gauge equipment. Supplied with flexible lifting
device.