Value Collection 630-33906 Steel Gage Block 0.9 in AS-1

Product Description

The VALUE COLLECTION 630-33906 is a rectangular steel gage block measuring 0.9 inches, manufactured to Grade AS-1 accuracy. Gage blocks are precision-ground, hardened steel reference standards used to calibrate measuring instruments, set comparators, and verify dimensional tolerances on the shop floor or in the metrology lab. This block meets NIST-traceable standards, making it suitable for quality control applications where documented accuracy is required. It is sold individually and is appropriate for use in tool rooms, inspection departments, and field calibration setups.

This gage block is used wherever a precise 0.9-inch reference dimension is needed. Typical applications include calibrating micrometers, height gages, and snap gages, as well as setting up machine tool fixtures. The Grade AS-1 classification meets the requirements of working-grade metrology, making it a practical choice for production floor use rather than a laboratory master set. Machinists, quality control technicians, and tool-and-die professionals are the primary users of this type of precision reference standard.

Key Features

• Grade AS-1 accuracy meets working-grade metrology standards
• NIST-traceable certification included for documented quality assurance
• Hardened steel construction provides long-term dimensional stability
• Rectangular geometry compatible with standard gage block accessories and holders
• Nominal size of 0.9 inches for use as a single reference block or in a wringing stack

Compatibility

Designed as an OEM-style replacement or supplemental block for standard rectangular steel gage block sets conforming to Grade AS-1 specifications.

Installation Notes

Gage blocks are handled and stored by metrology technicians or trained machinists following standard precision measurement practices. Blocks should be cleaned of oil, debris, and fingerprints with an appropriate solvent before use to ensure accurate wringing and dimensional readings. Store blocks in their protective case when not in use to prevent corrosion and surface damage. Do not drop or stack blocks with abrasive materials, as surface finish is critical to accuracy and NIST traceability.