Primarily used by turners, these thickness calipers can be fitted into virtually any shape of vase or bowl. To use, open the caliper by just pulling the legs apart (having the spacing nut between the legs rather than outside them allows this), put in position and then set the spacing nut to the wall thickness. Open calipers, remove and measure tip gap. The spacing nut can be adjusted for any thickness from 0 to 343mm on the 420mm model and 0 to 140mm on the 230mm model. The respective throat depths (from nut to tip) are 292mm and 140mm. These are equally good for dimensional take-offs of almost any oddly shaped object. Steel with brass fittings. Made in France.
10 March 2018
Head and shoulders better than every other thickness calliperBought the largest version which works for bowls, vases and hollow forms large and small. The spring closes the callipers whilst the screw knob keeps the calliper gap open at your desired wall thickness (basically the opposite way that most sprung callipers work) but because unlike normal callipers they aren't screwed shut; then the callipers are free to expand without damaging your finished outside surface while turning down the wall thickness. Very flexible shape that can be moved around to get an accurate indication of wall thickness with most shapes. Pretty pricey - but I would readily buy these again if I was setting up from scratch
5 February 2017
Veritas?I ordered the large pair of these but I am not sure they are actually Veritas... Every veritas product I have bought before has their name proudly stamped on both the tool and packaging along with made in Canada. These calipers have no sign of the Veritas name on either but simply have France stamped on them. They are relatively nice quality but not up to the standards that I would expect from Veritas so overall I'm not convinced, watch out for that one!