â·ÃÊͺ¶ÒÁÃÒ¤Ò A basic, cost-effective digital micrometer. The highly stable frame incorporates a heat shield to preserve accuracy over extended measuring sessions. A friction thimble guarantees repeatable measurement. Digimatic Micrometer 0-25mm / 0-1" Mitutoyo 293-832 Features: Simply measures 0 through 25mm with resolution to 0.001mm. Provided only with an origin-set button for easy origin setting. A ratchet stop or friction thimble for a constant measuring force. Measurement readout with large characters on the LCD screen. Specifications: No. 293-832 Type Standard Range 0-25mm / 0-1" Actual Range 0-25.4mm / 0-1" Resolution 0.001mm / .00005" Accuracy ±2µm / ±.0001" Display LCD Flatness 0.3µm / .000012" Measuring Faces Carbide Parallelism 2µm / .00008" Battery SR44 Battery Life Approx. 1.2 years under normal use 293-832 Micrometer Mitutoyo à¤Ã×èͧÁ×ÍÇÑ´¢¹Ò´ äÁâ¤ÃÁÔàµÍÃì