Mitutoyo 611172-541 Steel Gage Block 0.132 in Grade AS-1

Product Description

The MITUTOYO 611172-541 is a rectangular steel gage block measuring 0.132 inches in overall length, manufactured to ASME Grade AS-1 accuracy standards. Gage blocks are precision reference standards used to calibrate measuring instruments, verify part dimensions, and establish measurement datums in metrology labs, tool rooms, and quality control environments. This block meets ASME B89.1.9 Grade AS-1 tolerances, making it suitable for demanding inspection and calibration work. A certificate of inspection is included, providing traceability documentation required in many quality management systems. Licensed metrologists, tool and die makers, and quality technicians are the primary users of this type of reference standard.

This gage block is suited for use in calibration laboratories, machine shops, and manufacturing inspection stations where precise linear reference values are required. It functions as a single-block reference or as part of a wringing stack to build up specific measurement values. Grade AS-1 blocks are appropriate for inspection-grade applications where tighter tolerances than Grade AS-2 are needed but laboratory-grade (Grade K) is not required. The 0.132-inch nominal size fills a specific increment in inch-series gage block sets.

Key Features

• Grade AS-1 accuracy per ASME B89.1.9 for inspection-grade dimensional reference
• Steel construction provides durability and stable dimensional properties over time
• 0.132-inch nominal size for inch-series measurement stacking
• Includes certificate of inspection for quality system traceability
• Rectangular form supports standard wringing techniques

Compatibility

Designed as an OEM-style precision reference standard compatible with inch-series gage block sets and wringing accessories used in ASME-compliant metrology and inspection applications.

Installation Notes

Gage blocks should be handled by a qualified metrologist or calibration technician following established metrology lab procedures. Clean and deburr mating surfaces before wringing to prevent surface damage. Store blocks in their protective case away from temperature extremes and humidity to maintain dimensional stability. Do not drop or slide blocks against hard surfaces, as this can damage lapped faces and affect accuracy.