I've been using a Mitutoyo caliper for about 25 years, but it's only recently that it started giving insane readings. I cleaned it thoroughly, replaced the battery, etc., but nothing restored its health, so there was no other option but to buy another one. (I do a lot of 3D printing and vernier calipers are a must). Fastener Cal had good reviews and was very cheap. I particularly like the 4 modes: Metric, Inches, Fractions and Rounded Fractions. Also, it turns off automatically after about 15β¦