Mitutoyo 614215-531 Steel Gage Block 0.55 in Grade 0

Product Description

The MITUTOYO 614215-531 is a square steel gage block measuring 0.55 inches, manufactured to Grade 0 accuracy. Gage blocks are precision reference standards used to calibrate measuring instruments, verify dimensional accuracy, and set comparative gauging equipment. This block is machined from steel and meets ASME standards for dimensional tolerance at the Grade 0 level, making it suitable for lab, inspection, and shop-floor metrology work. A Certificate of Inspection is included with each unit, confirming the block has been measured and verified against traceable standards. Licensed metrology technicians, quality control inspectors, and precision machinists are the primary users.

This gage block is used in calibration labs, machine shops, toolrooms, and inspection departments where verified dimensional references are required. The 0.55-inch size fills a specific increment in a gage block set or serves as a standalone reference for setups requiring that nominal dimension. Grade 0 accuracy is appropriate for precision inspection work and instrument calibration where tighter tolerances are required compared to Grade AS-1 or Grade AS-2 blocks.

Key Features

• Grade 0 accuracy per ASME standards for precision dimensional reference
• Steel construction for durability and dimensional stability
• 0.55-inch nominal size for specific gauging and calibration setups
• Includes Certificate of Inspection with each unit
• Square form factor compatible with standard gage block accessories and holders

Compatibility

Designed as an OEM-style precision reference standard compatible with standard gage block accessories, holders, and wringing fixtures used in ASME-compliant metrology applications.

Installation Notes

Gage blocks are handled and set up by metrology technicians and quality control professionals. Blocks should be stored in a controlled environment to prevent corrosion and thermal expansion errors; allow adequate thermal stabilization time before use. Clean contact faces thoroughly before wringing or referencing to avoid measurement errors. Follow ASME B89.1.9 handling guidelines to protect the lapped surfaces from damage.