Mitutoyo 611201-531 Steel Gage Block 1 Inch Grade 0

Product Description

The MITUTOYO 611201-531 is a rectangular steel gage block manufactured to Grade 0 accuracy tolerances and supplied with a Certificate of Inspection. Gage blocks serve as the fundamental length reference standard in precision measurement, calibration work, and machine setup. This block measures exactly 1.00000 inches in overall length, making it suitable for verifying instrument calibration, setting comparators, and establishing reference dimensions on the shop floor. Grade 0 represents a high accuracy classification under ASME standards, appropriate for laboratory and inspection-grade applications. The block weighs approximately 1 pound and is constructed from steel for durability and dimensional stability.

This gage block is used in metrology labs, quality control departments, toolrooms, and precision machining environments. Typical applications include calibrating dial indicators, micrometers, and height gages, as well as setting up sine bars and fixture references. It is appropriate for both incoming inspection and in-process quality verification where traceable dimensional standards are required. The included Certificate of Inspection supports documentation requirements in regulated or quality-managed facilities.

Key Features

• Grade 0 accuracy classification per ASME standards for high-precision measurement reference
• Nominal size of 1.00000 inches for reliable, traceable length reference
• Steel construction for dimensional stability and resistance to wear
• Rectangular form compatible with standard gage block wringing and stacking techniques
• Includes Certificate of Inspection for traceability documentation

Compatibility

Designed as a standard rectangular gage block for use with conventional gage block accessories, holders, and wringing sets used in precision metrology and inspection applications.

Installation Notes

Gage blocks should be handled by calibration technicians or metrologists familiar with proper wringing technique and storage procedures. Clean all mating surfaces thoroughly before wringing to avoid contamination that can affect accuracy or damage the block faces. Store blocks in their protective case when not in use and keep away from temperature extremes to maintain dimensional stability. Periodic recalibration at intervals appropriate to usage and facility quality requirements is recommended.