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Internal thread inspection and External Thread Inspection Gages.
Click below link for information on Thread inspection of pitch diameter
measuring thread pitch diameter
Internal Thread Inspection:
Click below for information on internal thread inspection
Internal Gage frames, fingers and stands
Click below charts for Internal thread pitch diameter setting size calculators
Willrich Precision internal UNIFIED & METRIC SETTING SIZE-1
willrich precision internal ID ACME THREAD SETTING SIZE
willrich precision internal BUTTRESS THREAD SETTING SIZE
Willrich Precision internal WHITWORTH THREAD SETTING SIZE
External Thread inspection
Click below for information on External Thread Gage Inspection
EXTERNAL THREAD INSPECTION
Click below charts for External thread pitch diameter setting size calculators
Willrich Precision OD UNIFIED & METRIC SETTING SIZE
willrich precision O.D. WHITWORTH THREAD SETTING SIZE
willrich precision OD BUTTRESS THREAD SETTING SIZE
Willrich Precision f OD ACME THREAD SETTING SIZE