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Inside/Outside Callipers (976 | 9785)

Inside/Outside Callipers (976 | 9785)

Robert Sorby

Price not listed

The design of these callipers allows not only the measurement of wall thickness but also inside dimensions like the size of an aperture. As with double ended callipers the measurement at one end automatically transfers to the opposite. Available in 6 and 8½ models.

Robert Sorby's own words, read from their page.

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Where this comes from

The part other shops don't tell you. Three separate questions, kept separate on purpose, each with its source.