Mitutoyo 614213-531 Square Steel Gage Block 0.35 in Grade 0

Product Description

The MITUTOYO 614213-531 is a square steel gage block measuring 0.35 inches, manufactured to Grade 0 accuracy and conforming to ASME standards. Gage blocks are precision-ground, hardened steel reference standards used to establish and verify dimensional measurements in calibration labs, toolrooms, and production environments. This block ships with a Certificate of Inspection, confirming it meets the dimensional tolerances required for Grade 0 classification. Dimensional metrologists, quality technicians, and tool-and-die professionals rely on gage blocks of this grade for comparator setups, height-gage zeroing, and machine-tool calibration.

This block is suited for use in both laboratory calibration settings and on-floor inspection stations where tight dimensional tolerances must be maintained. At Grade 0, it provides a higher level of accuracy than Grade AS-1 or Grade AS-2 blocks, making it appropriate for master or reference-grade inspection workflows. Individual blocks of this size are commonly used in stacked combinations to build up specific measurement values across a range of gauging tasks.

Key Features

• Grade 0 accuracy classification per ASME standards
• 0.35-inch nominal size in square block form
• Hardened steel construction for dimensional stability and wear resistance
• Includes Certificate of Inspection for traceability documentation
• Single-block packaging suitable for individual replacement or set supplementation

Compatibility

Designed as an individual reference-grade gage block compatible with standard gage block wringing and stacking practices used across precision inspection and metrology applications.

Installation Notes

Gage blocks are handled and stored by metrology technicians following established cleanliness and anti-corrosion protocols. Surfaces should be cleaned with an appropriate solvent and lint-free cloth before and after use to prevent contamination and corrosion. Blocks should never be slid against hard surfaces or dropped, as this can damage the lapped faces and compromise dimensional accuracy. Store in the provided case when not in use and recalibrate on a schedule appropriate to the frequency and criticality of use.