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Rectangular steel gage block 0.004 inch grade 0

Mitutoyo

Mitutoyo 611304-531 Gage Block 0.004 in Grade 0 Steel

SKU CH-V5ST-WPMHX

Steel gage block measures 0.004 in to ASME Grade 0 with a Certificate of Inspection

  • Grade 0 accuracy backed by ASME standard
  • Steel construction provides wear-resistant reference surfaces
  • 004 inch nominal size for fine calibration steps
  • Rectangular 1 3/16 in by 23/64 in face ensures stable wringing
  • Includes Certificate of Inspection for traceable verification

Mitutoyo 611304-531 Grade 0 Steel Gage Block

The Mitutoyo 611304-531 is a rectangular steel gage block with a nominal size of 0.004 in. It meets ASME Grade 0 accuracy standards and includes a Certificate of Inspection. This precision reference standard is intended for calibration laboratories and quality-control departments verifying dimensional measuring equipment.

Verify calibration requirements and handling setup

Confirm that your calibration procedure calls for an ASME Grade 0 block with a 0.004 in nominal dimension and rectangular form without a hole. The steel material requires clean, temperature-controlled handling to maintain the stated tolerances of L: -0.0120 in to 0 in and W: -0.0080 in to -0.0020 in. Ensure your lab environment and wringing accessories support Grade 0 uncertainty budgets.

Suits metrology labs needing ASME Grade 0 references

This block suits metrology labs and inspection rooms that require a traceable 0.004 in steel reference with an inspection certificate. It is not for buyers who need a long-form calibration certificate, a holed block for stacking, or a different nominal size for their specific stack combinations.

Highlights

  • Grade 0 accuracy backed by ASME standard
  • Steel construction provides wear-resistant reference surfaces
  • 004 inch nominal size for fine calibration steps
  • Rectangular 1 3/16 in by 23/64 in face ensures stable wringing
  • Includes Certificate of Inspection for traceable verification

Specifications

BrandMITUTOYO

Questions about this item

What comes with the 611304-531 gauge block and do I need any extras?

The block includes a Certificate of Inspection and is ready for use; no additional accessories are required for its 0.004 in nominal size.

Should I choose the Grade 0 steel version or another grade for this 0.004 in block?

This model is supplied as Grade 0 steel per ASME standard, which is the grade specified for the 0.004 in size.

What does the 0.004 in nominal size mean when the block is wrung in a stack?

The 0.004 in nominal size adds exactly that length to a stack; length tolerance is -0.0120 in to 0 in and width tolerance is -0.0080 in to -0.0020 in.

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