Mitutoyo 611199-531 Steel Gage Block 0.9 in Grade 0

Product Description

The MITUTOYO 611199-531 is a rectangular steel gage block measuring 0.9 inches in overall length, manufactured to Grade 0 accuracy tolerances. Gage blocks of this class serve as precision length references used to calibrate measuring instruments, set comparators, and verify dimensional tolerances on machined parts. Grade 0 represents a high level of dimensional accuracy under ASME standards, making this block suitable for inspection-grade metrology work. Each unit ships with a Certificate of Inspection that documents conformance to the stated accuracy grade. Machinists, quality control technicians, and calibration labs are the primary users of this type of gage block.

This gage block is appropriate for use in toolrooms, inspection departments, and calibration laboratories where traceable dimensional references are required. It is suited for both setup work and verification tasks in precision manufacturing environments. The steel construction provides durability and stability under controlled temperature conditions. The included Certificate of Inspection supports documentation requirements for ISO and ASME-based quality management systems.

Key Features

• Grade 0 accuracy per ASME standards for high-precision measurement reference
• Overall length of 0.9 inches (0.90000 decimal inch) for precise dimensional reference
• Steel construction for durability and dimensional stability
• Includes Certificate of Inspection for traceability documentation
• Rectangular form factor compatible with standard gage block accessories and holders

Compatibility

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

Installation Notes

Gage blocks are handled and used by calibration technicians and quality control professionals, not installed in the traditional sense. Always handle with clean, lint-free gloves or chamois to prevent corrosion from skin contact. Store in the provided case away from temperature extremes and humidity to maintain dimensional accuracy. Wring blocks only on clean, undamaged surfaces, and inspect for burrs or damage before each use.