Mitutoyo 611148-531 Steel Gage Block 0.108 in Grade 0

Product Description

The MITUTOYO 611148-531 is a rectangular steel gage block ground to a nominal size of 0.108 inches and certified to Grade 0 accuracy. Gage blocks serve as the foundation of dimensional measurement in machine shops, calibration labs, and tool rooms, providing a traceable reference for setting comparators, verifying measuring instruments, and establishing precise setups. This block ships with a Certificate of Inspection, confirming it meets ASME standards for Grade 0 tolerance. Licensed metrology technicians, machinists, and calibration specialists are the primary users of this type of precision reference standard.

This gage block is suited for applications demanding tight dimensional traceability, including instrument calibration, surface plate layout work, and inspection of machined components. Grade 0 represents a high level of accuracy within the ASME B89.1.9 gage block standard, making this block appropriate for calibration lab use and high-precision shop floor inspection. Individual gage blocks like this one are also used to build up stacks of specific dimensions when a combination set is not available.

Key Features

• Grade 0 accuracy per ASME standards for high-precision dimensional reference
• Rectangular steel construction for durability and wringing compatibility
• Nominal size of 0.108 inches for specific stack or single-dimension setups
• Includes Certificate of Inspection for traceable metrology applications
• Individual block format for flexible use in custom gage block stacks

Compatibility

Designed as an individual replacement or supplemental block compatible with standard rectangular gage block sets and accessories that accept ASME B89.1.9 Grade 0 steel blocks.

Installation Notes

Gage blocks are precision instruments handled by calibration technicians and metrology professionals. Store blocks in their case and apply a light coat of protective oil when not in use to prevent corrosion. Clean contact surfaces with an appropriate solvent before wringing blocks together, and never force-wring or drop blocks, as this will damage the lapped surfaces. Handle with clean, lint-free gloves to avoid contamination from skin oils.