A pin gauge is a specialized tool for precisely assessing hole and slot dimensions and positions. It consists of a cylindrical rod with a tapered tip. This tool is inserted into the hole or slot being evaluated and rotated to ensure full contact with its inner surfaces. To achieve accurate measurements, the gauges diameter is then measured using a micrometer or another high-precision device. Pin gauges are essential in industries where precision matters, such as manufacturing and quality control, as they help confirm that holes and slots meet the required specifications, ensuring the reliability and accuracy of various mechanical components and products.
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Plug Gage Measuring - the art of using pre-sized precision metal plugs to determine the acceptability of diameters of drilled or machined holes.
The difference between any class of gage is not the wear or life span of the gage, it's the tolerance which is allowed in the manufacturing process of the gage.
GO/NOGO Measurement - A GO gage is used to check the lower limit of a hole.
A NOGO gage is used to check the upper limit of a hole.
If the GO gage enters the hole and the NOGO gage is unable to enter, the design specifications of the hole have been met.
Uses - for precision GO/NOGO measuring of hole sizes and depths, checking hole location and distance, and setting micrometers.
All gages are uniformly 2 long with ground ends, allowing you to use both ends for increased gage life. Gages are Carbon Chrome Alloy Steel (grade bearing quality steel) and heat treated to a 60-62 Rockwell C hardness.
All of our products come with a Certificate of Class Conformance, traceable to NIST (National Institute for Standards Technology).
The size and + (GO) or - (NOGO) are laser etched with a Meyer Exclusive Serial Number feature to ensure traceability on your shop floor on all gages that are .061 and larger.
Class ZZ Gages - These gages have an inch tolerance of . and a metric tolerance of .005mm.
They are practical where good precision and speed are important.
Class Z Gages - These gages have an inch tolerance of . and a metric tolerance of .mm.
They are one half the deviation of the ZZ for a better fit.
Class X Gages - These gages are available with an inch tolerance of . and a metric tolerance of .001mm.
These gages are used where greater precision is needed.
Class XX Gages - These gages have an inch tolerance of . and a metric tolerance of .mm.
They are one half of the deviation of the X.
Link to RTP GAUGE
Great for your most critical needs.
Length and Finish - All gages are 2 inches or 51mm long with ground ends for long life.
Steel - This is bearing quality, Carbon Chrome Alloy Steel, heat treated to 60-62 Rockwell C hardness and is considered the preferred material for the highest quality plug gages.
Certificate of Class Conformance - Assurance issued with each shipment of quality gages that conformance characteristics are traceable to NIST.
NIST - National Institute of Standards and Technology
Serial Number Etching - A feature that is exclusive to Meyer Gages and essential in assuring traceability on the shop floor on all gages over .060.
Plus Gage Tolerance - plus the tolerance, minus 0.
Minus Gage Tolerance - minus the tolerance, plus 0.
Gage Makers Tolerance Chart
See ASME B89.7.3.1 for more information on the 10% Rule and options beyond this rule.
link to Meyer index page
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