Mitutoyo 611194-531 Steel Gage Block 0.4 in Grade 0

Product Description

The MITUTOYO 611194-531 is a rectangular steel gage block measuring 0.4 inches, manufactured to Grade 0 accuracy. Gage blocks are precision-ground reference standards used to calibrate measuring instruments, set comparators, and verify dimensional accuracy on the shop floor or in a metrology lab. Grade 0 indicates a high level of dimensional accuracy suitable for inspection and calibration work. This block ships with a Certificate of Inspection, confirming it has been measured and documented against the stated accuracy grade. It is a single-piece block intended for use by metrologists, quality technicians, machinists, and tool-and-die professionals.

This gage block is suited for dimensional metrology applications in manufacturing, quality control, and calibration environments. It is used to establish reference lengths when setting dial indicators, height gages, micrometers, and similar instruments. Grade 0 blocks are appropriate for inspection-room use and for situations where tighter tolerances are required than general-purpose Grade 1 or Grade 2 blocks provide. Compatible with standard gage block wringing sets and accessories.

Key Features

• Grade 0 accuracy per ASME standards for inspection and calibration use
• Rectangular steel construction for durability and long-term dimensional stability
• Nominal size of 0.4 inches (5-decimal specification: 0.40000 inches)
• Includes Certificate of Inspection documenting conformance to stated accuracy grade
• Single-block package for individual replacement or supplementing an existing set

Compatibility

Designed as a standard rectangular gage block compatible with conventional wringing techniques and gage block accessories used in metrology and inspection applications.

Installation Notes

Gage blocks are handled and stored by metrology technicians and quality control professionals. Clean and dry all mating surfaces before wringing blocks together to prevent contamination and inaccurate readings. Store the block in its protective case when not in use to prevent corrosion, burring, or thermal distortion. Avoid dropping or sliding the block across hard surfaces, as surface damage will compromise accuracy.