Vernier Micrometer is the economical version without the bells and whistles. It has an all metal body and thimble with silver matte finish. This micrometer features crisp black numbers markings for easy reading. It ranges: 0-Reads to.0001 of an inch. Accuracy within.0001". The ratchet stop on thimble assures uniform application of pressure when measuring. Thimble lock keeps thimble from turning when measuring a constant. Included is an adjustment wrench and a fitted plastic storage case