Mitutoyo 516-901-26 Gage Block Set 81 Pc Steel

Product Description

The MITUTOYO 516-901-26 is an 81-piece steel gage block set covering a measurement range of 0.101 to 4 inches. It is built to Accuracy Grade 00, the highest grade defined under ASME B89.1.9-2002, making it suitable for laboratory-grade dimensional reference and precision calibration work. Each block is individually serialized and ships with an inspection certificate, supporting traceability requirements in quality and metrology environments. The set is housed in a wooden storage case. Tolerances are 3 micro-inches for blocks in the 0.05 to 1 inch range, 4 micro-inches for 2-inch blocks, and 6 micro-inches for the 4-inch block. Machinists, metrologists, and quality technicians are the primary installers and users.

This set is designed for precision measurement applications in manufacturing, tool-and-die, inspection, and calibration lab environments. The 81-piece configuration provides a complete working set for building a wide range of stack dimensions. Step increments include 49 blocks at 0.001-inch steps, 9 blocks at 0.0001-inch steps, 19 blocks at 0.05-inch steps, and 4 blocks at 1.000-inch steps. This combination supports virtually any dimensional reference requirement within the 0.101 to 4 inch range. The set is appropriate for both shop floor and controlled-environment use, particularly where Grade 00 traceability is required by quality management systems or customer specifications.

Key Features

• Accuracy Grade 00 per ASME B89.1.9-2002 — highest classification for gage block precision
• 81-piece set covering 0.101 to 4 inches with four step increment series
• Steel construction for durability and dimensional stability
• Each block individually serialized for traceability
• Includes inspection certificate for quality system documentation
• Wooden case included for organized storage and protection

Compatibility

Designed as a general-purpose Grade 00 steel gage block set for use with standard gage block accessories and holders conforming to ASME B89.1.9-2002 specifications.

Installation Notes

Gage blocks should be handled by metrology technicians or qualified quality personnel following proper wringing technique to avoid surface damage. Blocks must be stored clean and dry; contact with abrasive surfaces, corrosive chemicals, or unprotected metal can affect calibrated surfaces. Allow blocks to thermally stabilize to the measurement environment before use. Periodic recalibration intervals should comply with the applicable quality management system requirements and ASME standards.