• Satin chrome finish on barrel and thimble. • Measuring faces are fully hardened, precision ground and microlap finished to assure exceptionally accurate measuring. • Spindle threads are hardened and ground. • Microfine graduations (.001" or .01mm) on a satin chrome finish permit easy reading. • Ratchet stop thimble assures exact and repetitive readings. • Easy zero adjustment on the sleeve. • Meets or exceeds Federal accuracy specs. • Includes a setting ring. • Includes a spanner wrench and a case.