File talk:Using the caliper new.gif

The caliper is measuring a nut, not a bolt. 69.14.8.176 04:05, 3 April 2007 (UTC)

Und dann hätte ich gerne noch eine real existierende Sechskantmutter der Schlüsselweite SW 24,7 ;-) SCNR --Markus Schweiss 20:15, 3 April 2007 (UTC)

This image has some errors in the measurements, since is using cm (instead of mm) and only one decimal (instead of 2, according to ISO standards). A correct version is here --Jollyroger BUT it has given us the view that how can we use a vernier calliper.

I see a further (very small, in both senses!) error - on the original image it's fairly plain that the "7.5" tick mark on the vernier scale is in almost if not completely perfect alignment with the main scale, which the "7.0" one is not. That makes the actual reading 24.75mm / 2.475cm... Weirdly though, when I take the inches measurement (from the main image, not the GIF), it appears to be 15/16ths + approx 11/256ths (5.5/128ths)... which works out to 24.90mm ?! Unless you are to miscalculate the inches <> millimetres conversion as 25.2x instead of the true 25.4x - an otherwise minor error, but rather glaring when made in the engineering of precision tools. (Using this guage you can estimate measurements to about 1/40th of a millimetre, and about 1/256th of an inch - which is almost, but not quite, 1/10th of a millimetre... so the conversion inaccuracy is enough to show up even with things smaller than an inch; yer "metric inch" in this case coming out as 127/128ths of a "real" one.) 87.113.228.199 09:55, 18 December 2012 (UTC)

Teaching INCORRECT way to read the caliper

This image (along with its language specializations) is incorrectly teaching people how to read a caliper. The metric scale reading is NOT 2.47 cm. It is 2.475 2.470 cm ± 0.005 cm. The 2.47 cm reading would be correct if the vernier scale only had 10 rulings but it doesn't; it has twenty. Given how widely used this (featured!) image is it's sad to imagine how many millions of people have taught themselves to use a caliper incorrectly by using Wikipedia. Jason Quinn (トーク) 13:26, 15 October 2016 (UTC) EDIT: Original reading was wrong. Original point still stands. Jason Quinn (トーク) 19:59, 28 October 2016 (UTC)