Mitutoyo 611214-541 Steel Gage Block 0.45 in Grade AS-1

Product Description

The MITUTOYO 611214-541 is a rectangular steel gage block measuring 0.45 inches in overall length, manufactured to ASME Grade AS-1 accuracy standards. Gage blocks serve as precision length references used to calibrate measuring instruments, verify dimensional tolerances, and establish reference standards on the shop floor or in the metrology lab. This block ships with a Certificate of Inspection, confirming it meets the stated accuracy grade at the time of manufacture. Grade AS-1 is a workshop-grade standard appropriate for production measurement and instrument calibration in demanding industrial environments. It is typically handled by metrology technicians, machinists, and quality control professionals.

This gage block is suited for use in tool rooms, quality labs, and manufacturing environments where repeatable, traceable dimensional references are required. It functions as a standalone reference block or as part of a larger gage block set when building up specific measurements. The 0.45-inch nominal size makes it a common building-block dimension for inch-series stacks. Applications include surface plate work, comparator setup, height gage zeroing, and CMM reference verification.

Key Features

• Grade AS-1 accuracy per ASME standards for reliable workshop and calibration use
• Rectangular steel construction for durability and long gauge life
• 0.45-inch nominal length for inch-series dimensional stacking
• Includes Certificate of Inspection for traceability documentation
• Individually packaged — sold as a single block

Compatibility

Designed as an OEM-style precision reference block compatible with standard inch-series gage block sets and accessories conforming to ASME B89.1.9 rectangular gage block specifications.

Installation Notes

Gage blocks are handled by metrology technicians and machinists familiar with wringing technique and surface plate practices. Clean mating surfaces with an appropriate gage block cleaner before wringing to avoid contamination and measurement error. Store blocks in their protective case when not in use to prevent corrosion and surface damage. Do not drop or stack blocks carelessly, as surface nicks will compromise accuracy.