Mitutoyo 611162-531 Steel Gage Block 0.122 in Grade 0

Product Description

The MITUTOYO 611162-531 is a rectangular steel gage block manufactured to Grade 0 accuracy tolerances and used for precision dimensional reference and calibration work. Gage blocks at this accuracy level serve as master standards for setting measuring instruments, verifying part dimensions, and establishing reference planes in machine shops, metrology labs, and manufacturing quality-control environments. This block measures 0.122 inches in length and ships with a Certificate of Inspection. Grade 0 signifies tighter dimensional tolerances than Grade AS-1 or Grade 1, making it appropriate for laboratory-grade reference applications and instrument calibration tasks.

This gage block is suited for metrology labs, tool rooms, and precision manufacturing environments where a certified dimensional reference is required. It is used by machinists, quality technicians, and calibration professionals to verify measuring instruments such as micrometers, calipers, and dial indicators. The 0.122-inch nominal size allows it to function as a single-step reference or as part of a wringing stack assembly when combined with other gage blocks to build up composite dimensions.

Key Features

• Grade 0 accuracy per ASME standards for laboratory and precision calibration use
• Rectangular steel construction for durability and stable dimensional reference
• 0.122-inch nominal size suitable for individual use or wringing combinations
• Includes Certificate of Inspection confirming dimensional accuracy at time of manufacture
• Conforms to ASME standards for gage block dimensional and accuracy requirements

Compatibility

Designed as an OEM-style precision reference block compatible with standard gage block wringing sets and calibration setups requiring a 0.122-inch dimensional reference at Grade 0 accuracy.

Installation Notes

Gage blocks are handled and set up by metrology technicians and precision machinists. Before use, clean block faces thoroughly with an appropriate gage block cleaning solution to remove oils and debris that can affect wringing and dimensional accuracy. Store in the provided case away from temperature extremes, as thermal expansion can affect measurement results. Do not drop or slide blocks across abrasive surfaces, as surface damage will compromise accuracy and invalidate certification.