Steel Ring Gauge 0.1 mm Unit Specific Lapping

Steel Ring Gauge 0.1 mm Unit Specific Lapping

Ring gauge featuring excellent wear resistance with lapping finish.
· Sub-zero treatment/stabilizing treatment completed on all products.
· Nominal size and actual size printing.
· Features excellent wear resistance with lapping finish.
· A wide range of sizes is available. Indicated in 5 mm increments from 100 mm up.
· Performance inspection report included.
· Used to adjust the 0 point as a master gauge.
· Can be used for hole tests, cylinder gauges, internal micrometers, dial calipers, inner diameter measurement instruments, etc.


Part Number

Configured Part Number is shown.



●A master gauge for 0 point adjustment of the inner diameter measuring equipment.
●Sub-zero treatment to prevent deterioration, stabilized processed.


●As the master of the inner diameter measuring device.


●Hardness: 653 to 772HV
●Circularity/Cylindricality: Within 0.5μm (1 or more to 30 or less), 0.8μm or less (more than 30 to 50 or less)

What is ring gauge

Circular gauge is made with specific size and durable materials having
certain inside diameter tolerance.
Size and actual measuring value are engraved on master ring gauge.

Nominal size

Generally called size.

Measured value

Size +/- tolerance value.

The main purpose of ring gauge is used as
inside diameter standard for comparision
measuring instrument.
(Ex):Inside diameter measuring tool (Three point internal micro, air micrometer...) is used 
as a standard meter of zero adjustment.

Precaution before use

  • Clean the gauge with benzine or wipe ou dirty with clean cloth before use.
  • Ensure there is no rust, scratch or burrs.

Precaution before use

  • Remove all dust and fingerprints then apply anti-rust oil.
  • Keep it at a place with small changes in humidity and temperature.
Part Number
Part NumberVolume DiscountDays to ShipMajor Diameter D
Thickness B
Outer Diameter Chamfer C
Inner Diameter Chamfer F
Roundness / Cylindricity
Inner Diameter Tolerance
Material Remark
11 Day(s) or more 2240.40.30.5±1.0653~77210Alloy tool steelWith knurled, sub-zero treatment/stabilizing treatment completed


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Basic Information

Nominal Dimension D(mm) 1.0

Please check the type/dimensions/specifications of the part RG-1.0 in the Steel Ring Gauge 0.1 mm Unit Specific Lapping series.

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