Mitutoyo 611181-531 Steel Gage Block 0.141 in Grade 0

Product Description

The MITUTOYO 611181-531 is a rectangular steel gage block with a nominal size of 0.141 inches and an accuracy rating of Grade 0. Gage blocks are precision ground and lapped reference standards used to calibrate measuring instruments, set comparators, and verify dimensional accuracy on the shop floor or in metrology labs. Grade 0 represents a high level of dimensional accuracy per ASME standards, making this block suitable for demanding inspection and calibration work. Licensed metrologists, tool-and-die makers, and quality control technicians are the typical end users. A Certificate of Inspection is included with this block.

This gage block is used in metrology labs, production inspection environments, and machine shops where traceable dimensional references are required. It functions as a single-block reference or as part of a wringing set to build up composite dimensions. Applications include setting digital and dial comparators, verifying micrometer anvil parallelism, and calibrating height gages. Its rectangular form is compatible with standard gage block accessories such as holders and scribing attachments used in layout work.

Key Features

• Grade 0 accuracy per ASME standards for high-precision calibration and inspection use
• Steel construction provides durability and resistance to wear under repeated wringing cycles
• Nominal size of 0.141 inches with five-decimal precision specification
• Includes Certificate of Inspection for traceability documentation
• Rectangular form is compatible with standard gage block holders and accessories

Compatibility

Designed as an OEM-style precision reference standard suitable for use with standard rectangular gage block holders and accessories in shop-floor and laboratory metrology applications.

Installation Notes

Gage blocks should be handled by metrology technicians or trained inspection personnel following proper wringing and storage procedures. Clean block surfaces with an approved gage block cleaning solution before and after use to prevent corrosion and contamination. Store blocks in their protective case when not in use to maintain surface integrity. Avoid dropping or sliding blocks across hard surfaces, as this can damage the lapped faces and affect dimensional accuracy.