Digital Thickness Gauge 0.001mm/0.00005" | 0-12.7mm/0.5" Electronic Micrometer Thickness Meter with LCD Display, Unit Conversion, Storage Case, Extra Battery

No battery + instruction only in Chinese. Just received and return

I've had this digital micrometer for about 15 months and have used it extensively. I would say between 10 thousand to 12 thousand different measurements. My range of measurements are between 1.5mm and 2.0mm mostly with a few larger. I've attached 4 different photos of linearity graphs of my unit against Precision Tools feeler gauges (2 graphs about 8 months apart), a more recent graph using McMaster Carr precision tool steel rods and a final graph which has the Precision Tools feeler gauges and two certified flat milled stainless steel plates to give a much broader range. I had absolutely no success using this micrometer as a hand held device, which is why I think it has some bad reviews. It's advertised as being a hand held device. I use the device when it is securely fastened to a lab stand. Zero can walk after repeated use, but always returns stable - keep it clean. Excellent for rapid repeat measurements

よい。

通常のマイクロメーターと値はほとんど変わりませんので、こちらで十分です。 とっっっても楽です。 たまに通常のマイクロメーターと比較して精度確認するくらいで良いでしょう。 電源が充電式だったら良かったのですが、Micro-Bによる給電もしくは、LR44電池となります。 LR44電池は未付属ですのでご注意ください。 大変気に入りました。

Good little caliper set just very difficult to keep level. Maybe different on other material tried to use on saw blades can’t hold steady for an accurate reading. Going to keep maybe come in handy soon.