Features: • Clear microfine graduations on satin chrome finish • Base constructed of hardened tool steel is precision ground and microlapped. All other surfaces are satin chrome finished. • Available with 2.5" or 4" bases • Quick and easy zero adjustment • Rods hardened, ground and lapped on measuring surfaces and adjustable in either direction • Interchangeable rods are fitted to the micrometer spindle against a positive stop and locked • Ratchet thimble • Threads hardened, ground and lapped for accuracy • Price includes spanner wrench and fitted case *Image shown for representational purposes only