The Starrett 3732 Electronic Micrometer is a full-featured precision measuring tool built with customary Starrett quality and workmanship. The 3732 series includes a large, easy-to-read, high-contrast LCD digital readout for clear readings. With its automatic OFF functionality, smooth friction thimble for uniform pressure, and balanced frame design, Starrett products provide comfortable and accurate measuring Its no-glare satin chrome finish minimizes annoying surface glare under bright lights indoors. 1-2" (25.4-50.8 Approx mm), 0.00005" (0.001mm) Resolution.