Internal Variable Gages

Bi-Point™ Gage

The BI-POINT Internal Thread Gage is a widely adjustable thread measuring instrument. Only two frame sizes are required to measure from #10 (M5) through 5″ (M125). One goes from # 10 through 2½” and the other from 2⅝” through 5″. The measurement resolution is .0001″. It can be used bench mounted or hand held.
A specific set of gaging fingers is required for each thread size. The BI-POINT Gage can be changed from one thread size to another in less than three minutes. The following gaging fingers are available:
Thread CharacteristicANSI/ASME Gage #
Functional Diameter4.1
Pitch Diameter (per size)4.5
Minor Diameter (per size)5.2
“VARIMINOR” (.190″-2.5″ adjustable)5.2 Variable
Runout (P.D. to minor)4.7
Lead and Flank Angle4.8
The BI-POINT Gage meets all of the requirements of ANSI/ASME B 1.3M, MIL-S-7742, and MIL-S-8879.
The BI-POINT Gage is set using a solid threaded master ring gage. The master ring has three certified sizes on it: pitch diameter, functional diameter, and minor diameter. The gaging fingers must be set to the corresponding master ring certified size.
The result of a long form Gage Repeatability and Reproducibility Study for the BI-POINT™ Gage was 13% with the pitch diameter gaging fingers and 15% with the functional diameter gaging fingers.

Our company is taking all precautions during the COVID-19 coronavirus pandemic. We do remain OPEN for business and stand ready to serve you. We are limiting customer service interactions to PHONE and EMAIL. Although we are not promoting in person visits, we will be practicing non-contact package pick up and drop off, along with critical on-site calibration services as necessary.