Mitutoyo 516-904-26 Gage Block Set 81 Pc AS-2 Steel

Product Description

The MITUTOYO 516-904-26 is an 81-piece steel gage block set covering a measurement range of 0.05 to 4 inches, graded to AS-2 accuracy per ASME B89.1.9-2002. Each block is individually serialized and ships with an inspection certificate, supporting traceability requirements in calibration and quality assurance environments. Tolerances are tightly controlled across the range: 18 microinches for blocks from 0.05 to 0.4 inches, 24 microinches from 0.45 to 1 inch, 32 microinches at 2 inches, 40 microinches at 3 inches, and 48 microinches at 4 inches. The set is stored in a fitted wooden case for organization and protection between uses.

This set is suited for dimensional inspection, machine setup, calibration of measuring instruments, and surface plate work in manufacturing and metrology environments. The step increments cover four series: 19 blocks at 0.05-inch steps, 4 blocks at 1.000-inch steps, 49 blocks at 0.001-inch steps, and 9 blocks at 0.0001-inch steps, providing broad combination capability. Typical users include machinists, quality control technicians, tool and die makers, and calibration lab personnel working in industrial or production settings.

Key Features

• 81-piece set covering 0.05 to 4 inches with four step-increment series for wide combination range
• AS-2 accuracy grade per ASME B89.1.9-2002 standard
• Steel construction for durability and wringing compatibility
• Individually serialized blocks with included inspection certificate for traceability
• Tolerances specified per size range: 18 to 48 microinches depending on block length
• Fitted wooden storage case included

Compatibility

Designed as a general-purpose precision gage block set for use with standard surface plate and gage block accessories conforming to ASME B89.1.9-2002.

Installation Notes

Gage blocks are precision metrology tools and do not require mechanical installation, but proper handling procedures apply. Blocks should be wrung together on a clean, flat surface free of burrs and contaminants. Store blocks in the provided wooden case when not in use to prevent corrosion and surface damage. Calibration intervals should follow the requirements of the applicable quality management system or laboratory accreditation standard.