The BI-POINT™ Internal Thread Gage is a widely adjustable thread measuring instrument with three frame sizes required to measure from #10 through 2-1/2″, from 2-5/8″ through 5″ and from 5-1/8″ through 8″. 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:
ANSI/ASME Gage #
Pitch Diameter (per size)
Minor Diameter (per size)
“VARIMINOR” (.190″-2.5″ adjustable)
Runout (P.D. to minor)
Lead and Flank Angle
The BI-POINT™ Gage meets all of the requirements of ANSI/ASME B 1.3, SAE AS8879
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 remain OPEN for business and stand ready to serve you, although we are limiting customer interactions to PHONE and EMAIL ONLY at this time. Please continue to contact us either at 817-870-8888 or 800-435-2657.