40 — Machinist calc
®
Pro 2
ExTErNal ThrEaD
* Thread Pitch is only displayed for Numeric and U.S. Thread Sizes.
ThrEaD ClaSSIFICaTION
Machinist Calc Pro 2
as
THREAD TYPE U.S. THREAD CLASSES
Internal 1B 3B
1A 3A
Entering a Metric Thread will allow you to choose among
Metric Thread Tolerance
THREAD TYPE METRIC THREAD TOLERANCE CLASSES
Internal
3g
3h
3e
3f
4g
4h
4e
4f
5g
5h
5e
5f
7g
7h
7e
7f
8g
8h
8e
8f
9g
9h
9e
9f
* Default settings