Value Collection 630-24006 Steel Gage Block 4 in Grade 0

Product Description

The VALUE COLLECTION 630-24006 is a rectangular steel gage block measuring exactly 4.00000 inches, manufactured to Grade 0 accuracy standards. Gage blocks are precision reference standards used to calibrate measuring instruments, verify dimensional tolerances, and set comparators in metrology and machining environments. This block includes NIST certification, confirming its dimensional accuracy has been verified against national standards traceable to the National Institute of Standards and Technology. Grade 0 classification indicates a high level of dimensional accuracy suitable for inspection room and laboratory-grade measurement work. Licensed metrology technicians, machinists, and quality control inspectors are the primary users.

This gage block is suited for use in tool rooms, inspection labs, and manufacturing quality control settings where verified reference dimensions are required. The 4-inch nominal size covers a common range needed for setting height gages, bore gages, and surface comparators. It is appropriate for both incoming inspection workflows and periodic instrument calibration routines. NIST-traceable certification supports use in environments subject to ISO 9001, AS9100, or similar quality management system requirements where documented traceability of measurement standards is mandatory.

Key Features

• Grade 0 accuracy for inspection-room and laboratory-grade dimensional reference
• Nominal size of 4.00000 inches for precise, repeatable measurement setup
• NIST-traceable certification included, supporting quality management system compliance
• Steel construction provides durability and resistance to wear under repeated handling
• Rectangular block geometry compatible with standard gage block accessories and holders

Compatibility

Designed as a standard rectangular gage block for use with conventional gage block sets, holders, and accessories used in dimensional metrology and machine shop calibration applications.

Installation Notes

Gage blocks should be handled by metrology technicians or quality control personnel following established metrology practices. Store blocks in their protective case when not in use to prevent corrosion and surface damage. Clean block surfaces with an appropriate solvent and lint-free cloth before use, and allow the block to stabilize to room temperature before taking reference measurements. Do not drop or stack blocks without proper accessories, as surface damage will compromise accuracy.