Mitutoyo 611195-531 Steel Gage Block 0.5 in Grade 0

Product Description

The MITUTOYO 611195-531 is a rectangular steel gage block measuring 0.5 inches in overall length, manufactured to Grade 0 accuracy standards. Gage blocks are precision reference standards used to calibrate measuring instruments, verify dimensional tolerances, and establish accurate length references on the shop floor or in a metrology lab. This block conforms to ASME standards and ships with a certificate of inspection, confirming it meets Grade 0 tolerances. Grade 0 blocks are appropriate for high-precision calibration work where tighter tolerances are required compared to Grade AS-1 or AS-2 blocks. Machinists, metrologists, and quality control technicians working in tool rooms and inspection departments are the primary users.

This gage block is suited for use in dimensional inspection, surface plate work, height gage setup, and instrument calibration in both manufacturing and metrology environments. The 0.5-inch nominal size makes it a commonly used reference for setting comparators, dial indicators, and other precision gauging equipment. Its rectangular form allows stable wringing to other gage blocks when building up stacked dimensions. Applications span precision machining shops, quality labs, and inspection departments handling tight-tolerance work.

Key Features

• Grade 0 accuracy meets ASME standards for high-precision calibration use
• 0.5-inch nominal length with five-decimal precision (0.50000 inches)
• Steel construction provides durability and stable dimensional integrity
• Rectangular form supports wringing with other gage blocks for stacked measurements
• Includes certificate of inspection verifying compliance with stated accuracy grade

Compatibility

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

Installation Notes

Gage blocks are handled and stored by metrology technicians and quality control personnel, not installed in the traditional trade sense. Clean mating surfaces thoroughly before wringing blocks together to avoid damage to lapped faces. Store in the provided case away from temperature extremes and humidity to preserve calibration integrity. Do not drop, stack improperly, or use as a mechanical stop, as surface damage will compromise accuracy grade.