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Vermont Gage pipe ring gage 1-1/2"-11.5 uncoated tool steel

Vermont Gage

Vermont Gage 441105510 Pipe Ring Gage 1-1/2"-11.5 measurement tool

SKU CH-8HBZ-WNKN5

Tool-steel pipe ring gauge for 1-1/2"-11.5 NPT threads with NIST-traceable accuracy certificate

  • Thread size 1-1/2"-11.5 NPT matches pipe specs
  • Tool steel hardened to RC 60-62 resists wear
  • Class X tolerance per ASME B 1.20.1 ensures accuracy
  • Certificate of accuracy with NIST traceability validates calibration
  • L-1 gauge type inspects functional thread engagement

Vermont Gage 441105510 Pipe Ring Gage

The Vermont Gage 441105510 is a precision pipe ring gage manufactured from tool steel hardened to RC 60-62. It conforms to ASME B 1.20.1 standards with a Class X tolerance for accurate thread verification. The gage features an uncoated finish and includes a Certificate of Accuracy with NIST traceability for quality assurance.

Suitable for machinists

This L-1 ring gage suits professionals checking 3/8 In. -18 NPT thread dimensions during production or inspection. It is not intended for buyers requiring a long-form calibration certificate, as the manufacturer highlights specify that one is not included with this model. Users needing different thread sizes or tolerance classes should select an alternative gage.

Hardened tool steel maintains form under repeated

The RC 60-62 hardness ensures the gage resists wear and deformation during sustained gauging operations, preserving the Class X tolerance over time. The uncoated tool steel surface provides consistent contact with the workpiece without plating buildup affecting the measurement. NIST traceable certification supports reliable pass/fail decisions throughout extended production runs.

Highlights

  • Thread size 1-1/2"-11.5 NPT matches pipe specs
  • Tool steel hardened to RC 60-62 resists wear
  • Class X tolerance per ASME B 1.20.1 ensures accuracy
  • Certificate of accuracy with NIST traceability validates calibration
  • L-1 gauge type inspects functional thread engagement

Specifications

BrandVERMONT GAGE

Questions about this item

What thread size must the pipe or fitting already have to work with this 1-1/2"-11.5 NPT ring gage?

The gage checks external threads cut to 1-1/2"-11.5 NPT, so the part being inspected must carry that exact thread size and form.

Can the L-1 gage verify threads produced to the older ASME B1.20.1 standard still used in our shop?

Yes, the gage is manufactured to ASME B 1.20.1 and tolerance class X, matching the dimensions specified in that standard.

After setup, how do I confirm the gage is inspecting correctly using the supplied paperwork?

The included Certificate of Accuracy with NIST traceability documents the gage's actual dimensions against the class X limits, confirming it is within specification.

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