Starrett 762XFL Micrometer Head, Electronic, 0-1". Starrett satin chrome finish - no glare - resists rust on all reading surfaces. Extremely hard and stable one-piece spindle (the heart of our accuracy and long life). Micro-lapped measuring face for flatness and squareness. Inch/millimeter conversion. PRESET button to install any reading at any position. Measurement HOLD button. RS232 data output port.