INT 30

[Kenneth DeightonParticipant @kennethdeighton43272]

I wish to make a NT30 Arbor with a 1.125" x 12 tpi end to utilize my Myford equipment on my Tom Senior milling machine , am I correct that the angle from the horizontal shoulder to the taper is 80 degrees ?

Thanks..

[Kenneth DeightonParticipant @kennethdeighton43272]

[Keith LongParticipant @keithlong89920]

The Model Engineers Handbook (3rd Ed) gives the taper as 7 in 24 on diameter – doesn't give an angular measurement at all.

Keith

[Ex contributorParticipant @mgnbuk]

http://www.tools-n-gizmos.com/specs/Tapers.html

[JasonBModerator @jasonb]

That ratio would give about 73.78deg

[Author]

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