The Vermont Gage gauge is used to measure the middle diameter of the internal and external threads. All in stock thread gauges are ANSI B1.2(unified British thread) and ANSI b1.16m (metric M series thread) standard X class precision thread gauges. Working plug gauges in stock are 2B and 3B precision (British) or 6H precision (metric). Thread ring gauges and adjusting plug gauges are 2A and 3A precision (in English) or 6g precision (in metric) working plug gauges in the library are chrome-coated. All thread gauges are clearly marked with the number of teeth in inch (in English) or pitch (in metric), precision class and diameter of the thread.

Performance characteristics:

X accuracy,

· NIST(national bureau of measurement) query code

· the working plug gauge is 2B and 3B accuracy (imperial) or 6H accuracy (metric); Thread ring gauge and adjusting plug gauge are 2A and 3A precision (imperial) or 6g precision (metric)

· working plug gauge, reversible needle gauge and STI gauge are made of tool steel chrome-plated up to 70/72 RC

· thread ring gauge and adjusting plug gauge are made of tool steel with hardness up to 60/62rc

· British handle is light blue

· the metric handle is yellow

· the base of screw ring gauge can also be equipped

· bring along a certificate of competency

Standard thread measuring needle

The Vermont Gage thread gauge is often used in conjunction with the 1000 gauge to quickly and accurately measure the middle diameter of the external thread. Thread measuring pins can also be used to check for wear of thread plug gauges.

Performance characteristics:

· tool steel, hardness up to 59/64 RC

· thread ring gauge and adjusting plug gauge are made of tool steel with hardness up to 60/62rc

2 "long

· finish over 2 microinches

The ANSI/ASMEB89.1.17 standards

· bring along a certificate of competency