On 27/08/16 19:48, KYW wrote:


"fred" wrote in message
...
On Saturday, August 27, 2016 at 12:16:45 PM UTC+1, Dave Plowman (News)
wrote:
In article ,
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 ?

A set of 'number' drill bits it useful for this sort of thing. Depending
on just how accurate you need the measurement to be.

Yes that sound possible If I can get a cheap set of metric ones I\ll
give it a try

You haven't said if you want to measure the depth or the width of the
groove or both.
Most calipers have depth gauges


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