Mitutoyo 611193-541 Steel Gage Block 0.3 in Grade AS-1

Product Description

The MITUTOYO 611193-541 is a rectangular steel gage block measuring 0.3 inches in nominal length and manufactured to ASME Grade AS-1 accuracy. Gage blocks serve as dimensional reference standards used to verify, calibrate, and set measuring instruments such as micrometers, calipers, and comparators. This block ships with a Certificate of Inspection confirming it meets Grade AS-1 tolerances. It is a fundamental reference tool found in metrology labs, toolrooms, and quality-control environments. Machinists, metrologists, and precision-measurement technicians are the primary users.

This gage block is suited for toolroom and shop-floor metrology applications where a certified dimensional reference at 0.3 inches is required. It fits into standard gage block sets or is used as a standalone reference block for instrument setup and inspection routines. Grade AS-1 blocks are appropriate for general inspection and calibration work in manufacturing and machining environments where ASME-compliant references are required.

Key Features

• Nominal length of 0.3 inches for precise dimensional referencing
• Grade AS-1 accuracy per ASME standards
• Rectangular steel construction for durability and long-term dimensional stability
• Includes Certificate of Inspection for traceability
• Compatible with wringing techniques for block stacking

Compatibility

Designed as an OEM-style replacement or standalone reference block for use in standard rectangular gage block sets and metrology applications requiring ASME Grade AS-1 steel blocks.

Installation Notes

Gage blocks should be handled by metrology technicians or toolroom machinists following established calibration procedures. Store blocks in their protective case when not in use and keep them clean and lightly oiled to prevent corrosion. Before use, allow the block to thermally stabilize to the ambient measurement environment. Do not drop or stack blocks improperly, as surface damage will compromise accuracy.