This document discusses different methods for checking the accuracy of various types of thread gauges. Check plug gauges are used to measure female thread ring gauges for both new and used gauges. For new ring gauges, check plugs have both GO and NO-GO measures, while for used gauges only the GO plug is needed. Adjustable and caliper ring gauges also require setting gauges to accurately set them. Various gauges like thread pitch gauges can help determine thread type but not accuracy. Ensuring gauge accuracy is important for precision work.

1. Checking Thread Ring Gauges to Determine Accuracy
When it comes to working in production shops and standard rooms, precision makes a world of
difference. This is why thread gauges reflect the dire need of accuracy and meticulousness of
every aspect of working with mechanical parts. Thread gauges come in a number of varieties and
continued use can wear them out. This is specifically important since you do want to have the
most accurate measurements of the threaded parts you use. You can use a metric thread gauges
that needs two way calibrations to churn up accurate measurements.
However, even then different types of thread gauges are used for a number of reasons. Their
extensive use causes wear and they need to be periodically calibrated to ensure accurate
acceptance. Thread plug gauges or ‘male gauge’ can be easily measured due the the fact that
the pitch diameter is of the amenable kind in the standard rooms. The female gauge on the other
hand is difficult to assess. Yet, there are a few ways to evaluate the correctness.
The check plug gauge is the tool used to measure the accuracy of the female gauge. It is basically
a nut with tolerance that is closer than normal. Check plug gauges act in the same way GO and
NO thread ring gauges work. The check plug has its own GO and NO GO measure that is used
on both the GO and NO GO parts of the ring gauge.
For New Rings: For new rings check plug gauges have both GO and NO GO measures. New
rings need to be put through both GO and NO GO check for plug gauges. For the sole purpose of
checking new gauges, check plug gauges sport both Go and NO GO members.
For Used Rings: Wear check plug gauges with both members to check new gauges. A wear
check plug is a no go device itself which means that it need not enter the thread ring gauge more
than two rotations. However, one difference that marks checking a used and new gauge is the
fact that a NO GO check plug is not required for checking the NO GO ring. The GO plug is
enough to inspect the NO GO ring.
Adjustable and Caliper Ring Gauges: A GO and NO GO setting gauge is used to set the gauges
of an adjustable ring gauge. This is then checked with NO GO check plug for non entry. Caliper
ring gauges are also needed to be set accurately. GO sized setting gauge again come to the aid
for setting this type of gauges. The setting is supposed to pass smoothly using gravity only.
Other varieties of gauges used to check accuracy are thread pitch gauge. The gauge is basically a
visual checking device and is not an inspection device. It can be used to ascertain whether a new
screw or not is a metric thread, British thread or any other type. With the information presented
in this guide, you should be able to calibrate any type of gauges and ensure accuracy every time
they are used.
Gaugestools has been manufacturing and supplying different types of thread gauges for years.
Their experience and expertise has made them a leading manufacturer par excellence. They have
been supplying customers metric thread gauges and other types with dedication and commitment
to quality.