Value Collection 630-33406 Steel Gage Block 0.4 in Grade AS-1

Product Description

The VALUE COLLECTION 630-33406 is a rectangular steel gage block measuring 0.40000 inches, manufactured to Grade AS-1 accuracy standards. Gage blocks are precision-ground reference standards used to calibrate measuring instruments, set up comparators, and verify dimensional accuracy on the shop floor or in the metrology lab. This block includes NIST certification, providing traceability to national measurement standards. Grade AS-1 denotes a high level of dimensional accuracy and surface flatness, making it suitable for demanding inspection and calibration work in industrial and trade environments.

This gage block is used in precision measurement applications across manufacturing, machining, tool-and-die, and mechanical inspection settings. Machinists, quality control technicians, and calibration specialists use blocks like this one to verify instrument accuracy, establish reference datums, and perform direct comparison measurements. The 0.40000-inch nominal size makes it a practical addition to an incremental gage block set or a standalone reference standard for specific dimensional checks.

Key Features

• Grade AS-1 accuracy for high-precision calibration and inspection use
• Nominal size of 0.40000 inches with five-decimal inch designation
• Steel construction for durability and long-term dimensional stability
• Includes NIST certification providing traceable measurement standards
• Rectangular form for easy wringing and stacking with other gage blocks

Compatibility

Designed as an OEM-style precision reference standard compatible with standard rectangular gage block sets used in general metrology and dimensional inspection applications.

Installation Notes

Gage blocks should be handled by calibration technicians or qualified metrology personnel using appropriate lint-free gloves to prevent contamination and corrosion. Clean block surfaces thoroughly before and after use using approved solvents and store in a protective case to maintain surface integrity. Do not drop or impact the block, as even minor surface damage can compromise accuracy. Follow your facility calibration procedures and applicable ASME B89.1.9 standards when using gage blocks in a measurement traceability program.