Mitutoyo 611191-531 Steel Gage Block 0.1 in Grade 0

Product Description

The MITUTOYO 611191-531 is a rectangular steel gage block ground to a nominal size of 0.1 inches and certified to Grade 0 accuracy per ASME standards. Gage blocks serve as dimensional reference standards used to calibrate measuring instruments, set comparators, and verify part dimensions on the shop floor or in a metrology lab. Each block ships with a Certificate of Inspection, confirming it meets the stated accuracy grade. Grade 0 represents a high level of dimensional accuracy, making this block suitable for demanding calibration and inspection work performed by machinists, quality technicians, and metrologists.

This gage block is intended for use in precision measurement environments including tool rooms, quality control labs, and production floor inspection stations. It functions as a single-block reference standard or as a component in a wrung stack assembled to a target dimension. Applications include setting dial indicators, zeroing digital calipers and micrometers, and verifying the calibration of other measurement equipment. The block is supplied individually and is compatible with standard wringing procedures used with rectangular steel gage block sets.

Key Features

• Nominal size of 0.1 inches ground to Grade 0 accuracy per ASME standards
• Rectangular steel construction for durability and stable dimensional reference
• Includes Certificate of Inspection for traceability documentation
• Compatible with standard wringing technique for block stacking
• Single-block package suitable for replacing or supplementing an existing set

Compatibility

Designed as an OEM-style individual replacement or supplement block compatible with standard rectangular steel gage block sets conforming to ASME dimensional standards.

Installation Notes

Gage blocks are handled and used by quality technicians and metrologists — no installation in the traditional sense applies. Store blocks in a clean, dry environment and allow them to stabilize to the ambient temperature of the measurement area before use. Clean block surfaces with an appropriate gage block cleaning solution before wringing to prevent damage to the lapped faces. Never drop or stack blocks carelessly, as damage to lapped surfaces will compromise dimensional accuracy.