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Small rectangular steel gauge block 0.5 mm grade 0

Mitutoyo

Mitutoyo 611506-531 Steel Gauge Block 0.5 mm Grade 0

SKU CH-JW4H-7M7YJ

A rectangular steel gauge block calibrated to ASME Grade 0 with a 0.5 mm nominal size, 30.00 mm face length and 23/64 in face width, supplied with a Certificate of Inspection

  • Product typeMicrometers
  • Precision measurement backed by ASME Grade 0 tolerance
  • Hardened steel construction resists wear for long-term accuracy
  • 5 mm nominal size suited for fine calibration tasks
  • Rectangular 30.00 mm by 23/64 in face enables stable wringing
  • Includes Certificate of Inspection for traceable verification

Mitutoyo 0.5 mm Grade 0 Steel Gauge Block

This rectangular steel gauge block has a nominal size of 0.5 mm and meets ASME Grade 0 tolerance requirements. It is supplied with a Certificate of Inspection for traceability. The block is intended for precision dimensional calibration and inspection tasks in metrology labs or quality-control departments.

Suited for calibration technicians

Users who require a certified reference standard for verifying micrometers, calipers or coordinate-measuring machines will find this block appropriate. It is not intended for buyers who need a full set of gauge blocks covering multiple nominal sizes, nor for applications that demand a long-form calibration certificate instead of the included Certificate of Inspection.

Simple to wring into a stack for combined lengths

The rectangular face measures 30.00 mm by 23/64 in and has no central hole, so it wrings directly against adjacent blocks or measuring anvils. The main risk is surface damage from contamination or mishandling, which can degrade the tight tolerance of ±0.3000 in on length and the width tolerance range of −0.2000 in to −0.0500 in.

How it compares

Measured against everything we stock in Gauges & Tachometers, at today’s prices. Recalculated every night.

Price $43.99
Pricier than about 61% of the 193 comparable items (median $35.99).

Specifications

Product
Brand nameMITUTOYO
Product typeMicrometers

Questions about this item

Does the 0.5 mm grade-0 block need any other gauge blocks or accessories to be used for calibration?

The rectangular steel block is a standalone reference; it requires no additional blocks or accessories to perform its calibration function.

Can the 30.00 mm face length and 23/64 in face width sit alongside older imperial gauge blocks in the same setup?

Yes, the metric nominal size and ASME 0 grade allow it to wring reliably with legacy imperial blocks of matching tolerance.

How do I verify the 611506-531 block is within its -0.3000 in to 0 in length tolerance after receiving it?

Compare the block against a calibrated reference using a comparator; the included Certificate of Inspection confirms the factory measurement.

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