Mitutoyo 611195-541 Steel Gage Block 0.5 in Grade AS-1

Product Description

The MITUTOYO 611195-541 is a rectangular steel gage block with a nominal size of 0.5 inches, manufactured to ASME Grade AS-1 accuracy. Gage blocks are precision-ground reference standards used to calibrate measuring instruments, verify dimensional tolerances, and set up inspection equipment. Grade AS-1 denotes a high-accuracy classification under ASME B89.1.9, making this block suitable for calibration lab use and precision shop-floor measurement applications. Each block ships with a certificate of inspection that documents dimensional traceability. Machinists, metrologists, and quality control technicians are the primary users.

This gage block is suited for dimensional metrology in both laboratory and manufacturing environments. It serves as a reference standard when calibrating micrometers, vernier calipers, height gages, and comparators. The 0.5-inch size is a commonly specified increment in inch-series gage block sets and is frequently used as a standalone reference block for setup and verification tasks in precision machining, toolroom inspection, and quality assurance workflows.

Key Features

• Grade AS-1 accuracy per ASME B89.1.9 for high-precision calibration and inspection use
• Steel construction provides durability and long-term dimensional stability
• Nominal size of 0.5 inches (0.50000 decimal inch) for use as an inch-series reference standard
• Includes certificate of inspection documenting dimensional traceability
• Rectangular form compatible with standard gage block accessories and holders

Compatibility

Designed as an OEM-style individual reference block compatible with standard inch-series gage block sets and accessories. No specific set or system compatibility was stated in the product data.

Installation Notes

Gage blocks should be handled by metrology technicians or qualified inspection personnel following established calibration procedures. Store blocks in a protective case away from moisture and contaminants to prevent corrosion and dimensional drift. Clean and wring blocks using approved techniques before use, and allow thermal stabilization before taking reference measurements. Periodic recalibration against a national standard traceable reference is recommended per applicable quality system requirements.