ToAuto DRO Glass Scale add-on to a Jet JMD-15 End Mill

[addertooth]

Sorry,
I am a bit of a math purist. I worked in a physics lab for too many years. It is a weakness.
25.399999187200026 mm per inch.

 

[jwmelvin]

Sorry,
I am a bit of a math purist. I worked in a physics lab for too many years. It is a weakness.
25.399999187200026 mm per inch.

See here ("The value for the inch, derived from the value of the Yard effective July 1, 1959, is exactly equivalent to 25.4 mm.").

 

[addertooth]

yes... a committee agreed. That trumps everything else.