Features Balanced frame design for comfortable and accurate measuring SPC Output Large, easy-to-read, high-contrast LCD digital readout Starrett No-glare satin chrome finish on thimble and sleeve minimizes annoying surface glare under bright lights indoors or filters out UV light No-glare black wrinkle finish on frame Hard and stable one-piece friction thimble permits one-hand operation of micrometer and uniform contact pressure Inch/millimeter metric conversion provides simple, universal, standardized unit of measurement at any position Ring-type knurled lock nut for quick and sure locking Micro-lapped carbide measuring faces Specifications Made in America: Yes Micrometer Type: Outside Range (in): 7-8" Range (mm): 178-203mm Resolution (in): .0001" Resolution (mm): 0.001mm Anvil/Spindle Material: Carbide Anvil Type: Flat Spindle Type: Flat Lock Nut Type: Knurled Ring Type Thimble Type: Friction Thimble Graduations: English Display Type: LCD SPC Output: Yes Accuracy (in): +/-.0002" Accuracy (mm): +/-.005mm