Mitutoyo 611151-531 Steel Gage Block 0.111 in Grade 0

Product Description

The MITUTOYO 611151-531 is a rectangular steel gage block measuring 0.111 inches, manufactured to Grade 0 accuracy standards as defined by ASME. Gage blocks are precision-ground reference standards used to calibrate measuring instruments, set comparators, and verify dimensional accuracy in machining and inspection environments. Each block ships with a Certificate of Inspection, confirming it has been verified against traceable standards. Grade 0 represents a high level of dimensional accuracy, making this block suitable for use in calibration labs, tool rooms, and precision inspection stations where measurement integrity is critical.

This gage block is intended for use in metrology and dimensional inspection applications across industrial, manufacturing, and toolroom settings. It serves as a reference standard for calibrating micrometers, calipers, height gages, and CMM fixtures. Typical users include quality control technicians, machinists, and metrologists performing in-house calibration or part verification. The rectangular form factor is the most widely used geometry for gage block sets and individual reference blocks.

Key Features

• Grade 0 accuracy per ASME standards for precision calibration and inspection use
• 0.111-inch nominal size, precision-ground to tight dimensional tolerances
• Steel construction provides durability and dimensional stability under shop conditions
• Includes Certificate of Inspection for traceability documentation
• Rectangular geometry compatible with standard gage block accessories and holders

Compatibility

Designed as an individual OEM-style rectangular gage block for use with standard gage block sets, holders, and accessories conforming to ASME gage block specifications.

Installation Notes

Gage blocks are precision instruments and should be handled by metrology or quality control personnel trained in proper wringing technique and storage practices. Blocks must be stored in a clean, dry environment and allowed to thermally stabilize before use to ensure accurate measurements. Never drop or slide blocks against hard surfaces, as this can damage the lapped faces. Clean contact faces with a lint-free cloth and appropriate solvent before wringing.