Economical version without the bells and whistles. All metal body and thimble with cilver matte finish. Crisp black numbers and markings for easy reading. Range: 0-1". Reads to .0001 of an inch. Accuracy within .0001". Ratchet stop on thimble ensures uniform application of pressure when measuring. Thimble lock keeps thimble from turning when measuring a constant. Adjustment wrench included. Fitted plastic storage case. Mfg: Rcbs