External Thread; Thread Classification; Changing Thread Classes - Calculated Industries 4087 User Manual

(cont'd)

external Thread

Thread Size
Cut Rod Size
Roll Shank Size
Maximum Pitch Diameter

Thread Classification

With the Machinist Calc Pro you can choose between Internal
and External Threads. Entering a U.S. Thread Size will allow you
to choose among U.S. Thread Classes as shown below.
Thread Type
Internal
external
Entering a Metric Thread will allow you to choose among Metric
Thread Tolerance Classes as shown below.
Thread Type
Internal
external
* Default settings

Changing Thread Classes

To display the current Thread Classification, press
Repeated presses of
Internal Thread Types. You can change the number of a
Thread Class by entering the number of the desired class/
grade and pressing
42 — M
achinist
U.S. Thread Classes
1b
1A
Metric Thread Tolerance Classes
3G 4G
3H 4H
3g 4g
3h 4h
3e 4e
3f 4f
will toggle between External and
b
.
g b
c P
alc™ ro
Minimum Pitch Diameter
Maximum Major Diameter
Minimum Major Diameter
Maximum Minor Diameter
2b*
2A
5G 6G
5H 6H*
5g 6g
5h 6h
5e 6e
5f 6f
3b
3A
7G 8G 9G
7H 8H 9H
7g 8g 9g
7h 8h 9h
7e 8e 9e
7f 8f
.
g b
9f