jim k Wrote in message:
Robin Wrote in message:
On 26/08/2016 12:05, fred wrote:
I want to measure the width of a groove which is only about 3.5mm wide and 1-3 mm deep.
Ordinary Mitutoyo calipers with pointed tips are not much good for this application due to the shallow nature of the groove.

Any suggestions ?


If the profile of the groove is rectangular (or near enough) the
technique I was taught was to measure with, and express the result in
units of, strips torn from Players No 6 packs


:-)
+/- a cock hair?

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Jim K


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+/- a cat's cock hair?

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