FEATURES Starrett satin chrome finish - no glare - resists rust on all reading surfaces Advanced sleeve design with staggered lines and distinct figures for precise and easy readability Quick-reading figures Extremely hard and stable one-piece spindle (the heart of our accuracy and long life) Micro-lapped measuring face for flatness and squareness Quick and easy adjustment Inch/millimeter conversion PRESET button to install any reading at any position Measurement HOLD button RS232 data output port SPECIFICATIONS Made in America: Yes Range (in): 0-2" Range (mm): 0-50mm Resolution (in): .0005" Resolution (mm): .001mm Spindle Material: Carbide Lock Nut Type: Ring Type Knurled SPC Output: Yes Spindle Type: Flat Thimble Graduations: English Thimble Type: Friction Accuracy (in): +/-.0001" per inch Accuracy (mm): +/-.003mm per 25mm