Mitutoyo 611161-531 Steel Gage Block 0.121 in Grade 0

Product Description

The MITUTOYO 611161-531 is a rectangular steel gage block measuring 0.121 inches in overall length, manufactured to Grade 0 accuracy standards per ASME specifications. Gage blocks are precision-ground reference standards used to calibrate measuring instruments, verify dimensional accuracy, and set comparators to a known reference. This block ships with a Certificate of Inspection, confirming it has been individually verified against traceable metrology standards. Grade 0 represents a high level of dimensional accuracy, making this block appropriate for quality assurance labs, tool rooms, and precision measurement applications where tight tolerances must be maintained.

This gage block is used in manufacturing, inspection, and metrology environments where precise dimensional references are required. It is suited for calibration labs, machine shops, and quality control departments working to ASME tolerance standards. Typical users include metrology technicians, quality engineers, and precision machinists who need a reliable reference standard for setting gauges, micrometers, height gauges, and similar instruments.

Key Features

• Grade 0 accuracy per ASME standards for high-precision measurement reference
• Steel construction for durability and dimensional stability
• 0.121-inch nominal size with five-decimal precision
• Includes Certificate of Inspection for traceability documentation
• Rectangular form compatible with standard gage block wringing and stacking techniques

Compatibility

Designed as a standard rectangular gage block for use with ASME-compliant gage block sets, holders, and accessory components in tool room and laboratory measurement applications.

Installation Notes

Gage blocks should be handled by metrology technicians or qualified quality personnel following established laboratory protocols. Store blocks in their protective case when not in use and keep contact surfaces clean and free of contaminants before wringing. Never slide blocks across abrasive surfaces, and allow blocks to thermally stabilize to the measurement environment before use to ensure dimensional accuracy. Periodic recalibration against traceable standards is recommended to maintain measurement integrity.