External Thread; Thread Classification; Changing A Thread Classification - Calculated Industries MACHINIST CALC PRO User Manual

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.
Thread Type
Internal
external
* Default setting

Changing a Thread Classification

To display the current Thread Classification, press
You can change the number of a Thread Class by entering
the number of the desired grade and pressing
Repeated presses of
Internal Thread Types.
KeysTRoKe
g *
1. Enter a Tolerance Grade of 4:
(Thread Class)
4gb
2. Toggle through the available Tolerance Positions for the
entered Grade:
Minimum Pitch Diameter
Maximum Major Diameter
Minimum Major Diameter
Maximum Minor Diameter
Metric Thread Tolerance Classes
3G 4G 5G
3H 4H 5H
3g 4g 5g
3h 4h 5h
3e 4e 5e
3f 4f
will toggle between External and
b
6G 7G
6H* 7H
6g 7g
6h 7h
6e 7e
5f 6f 7f
U
8G 9G
8H 9H
8g 9g
8h 9h
8e 9e
8f 9f
.
gb
.
gb
DIsPlay
all CleaRed
InT 4H
MM
(cont'd)
' G — 33
ser s Uide