Mitutoyo 611198-531 Steel Gage Block 0.8 in Grade 0

Product Description

The MITUTOYO 611198-531 is a rectangular steel gage block measuring 0.8 inches in overall length, manufactured to Grade 0 accuracy. Gage blocks are precision reference standards used to calibrate measuring instruments, set comparators, and verify dimensional tolerances on the shop floor or in a metrology lab. Grade 0 indicates a high level of dimensional accuracy per ASME standards, making this block appropriate for inspection and calibration work where tight tolerance verification is required. Each unit ships with a Certificate of Inspection documenting conformance. The block is constructed from steel and weighs approximately 1 pound.

This gage block is suited for use in precision measurement environments including machine shops, quality control labs, toolrooms, and manufacturing inspection stations. It serves as a reference standard for calibrating micrometers, dial indicators, height gages, and similar instruments. Typical users include metrologists, quality technicians, machinists, and tool and die makers. The 0.8-inch size fills a common dimensional reference need in both inch-system calibration sets and standalone applications where a specific block size is required as a replacement or supplement.

Key Features

• Grade 0 accuracy per ASME standards for high-precision dimensional reference work
• Rectangular steel construction for durability and dimensional stability
• 0.8-inch nominal size (5-decimal precision: 0.80000 inches)
• Includes Certificate of Inspection for traceability documentation
• Single-block packaging suitable for replacing or supplementing an existing set

Compatibility

Designed as an OEM-style precision reference standard compatible with inch-system gage block sets and calibration systems conforming to ASME specifications.

Installation Notes

Gage blocks are handled and stored by metrology technicians and quality control personnel. Blocks should be kept clean, lightly oiled with appropriate gage oil, and stored in a protective case when not in use to prevent corrosion and surface damage. Wringing surfaces must be free of debris before use. Do not drop or strike the block, as impact damage will compromise accuracy and invalidate calibration.