Description
The MITUTOYO 611178-541 is a rectangular steel gage block used for dimensional measurement, calibration, and inspection work. The block measures 0.138 inches in nominal length and is manufactured to ASME AS-1 accuracy grade, making it suitable for precision metrology applications in tool rooms, quality labs, and production environments. A certificate of inspection is included, providing documented traceability for quality management systems. Gage blocks at this accuracy level are handled and stored with care to maintain their calibrated surfaces and prevent wear or corrosion.
This gage block is used wherever precise dimensional reference is required setting comparators, calibrating micrometers, verifying fixture setups, and checking machined-part tolerances. The 0.138-inch size fits into standard gage block sets and build-up combinations. It is appropriate for use in quality control departments, machine shops, and metrology labs in both light manufacturing and high-precision industrial settings. Metrologists, QC inspectors, and toolmakers are the typical end users.
Key Features
- AS-1 accuracy grade per ASME standards suited for calibration and inspection-grade dimensional reference
- Rectangular steel construction provides durability and resistance to handling wear
- 0.138-inch nominal length for use in gage block build-up combinations or standalone dimensional checks
- Includes certificate of inspection for traceability documentation
- Single-piece packaging supports individual replacement or supplemental set additions
Compatibility
Designed as an OEM-style individual gage block suitable for use with standard rectangular gage block sets and build-up accessories conforming to ASME gage block specifications.
Installation Notes
Gage blocks are handled by metrologists, QC inspectors, and toolmakers in laboratory or shop environments no power shutoff is required for use. Blocks should be wrung together on a clean, flat surface using proper wringing technique to avoid surface damage. Store blocks in their protective case and apply a light coat of approved gage oil or corrosion inhibitor when not in use. Avoid dropping or stacking blocks without proper interleaving to protect the lapped surfaces.
Technical Specifications
- Nominal Length: 0.138 inches
- Accuracy Grade: AS-1
- Material: Steel
- Standard: ASME
- Weight: 1 pound
- Package Quantity: 1
Standard Information
- Brand: MITUTOYO
- Manufacturer Part Number: 611178-541
