{"product_id":"value-collection-630-74006-square-steel-gage-block-4-in-grade-0","title":"Value Collection 630-74006 Square Steel Gage Block 4 in Grade 0","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 630-74006 is a square steel gage block measuring 4.00000 inches, manufactured to Grade 0 accuracy standards. Gage blocks are precision reference standards used to calibrate measurement tools, set up fixtures, and verify dimensional accuracy on the shop floor or in the metrology lab. This block includes NIST certification, confirming its dimensional accuracy has been verified against national measurement standards. It is appropriate for use in manufacturing, toolroom, and quality-control environments where tight tolerances demand traceable measurement references.\u003c\/p\u003e\n\u003cp\u003eThis gage block is suited for use in machine shops, toolrooms, and inspection departments handling precision machining, grinding, and layout work. The 4-inch size covers a common reference dimension used in fixture setup and comparator calibration. The included NIST certification documentation makes it suitable for environments subject to ISO or AS9100 quality audits where measurement traceability is required. Both production machinists and metrology technicians rely on Grade 0 blocks for applications demanding the tightest dimensional control.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eGrade 0 accuracy for high-precision measurement and calibration applications\u003c\/li\u003e\n  \u003cli\u003e4.00000 inch nominal size with tight dimensional tolerance per Grade 0 specification\u003c\/li\u003e\n  \u003cli\u003eSteel construction provides durability and stability across typical shop temperature ranges\u003c\/li\u003e\n  \u003cli\u003eIncludes NIST certification for traceable dimensional verification\u003c\/li\u003e\n  \u003cli\u003eSquare block form supports stable positioning during layout and setup tasks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style precision reference standard compatible with standard gage block accessories including holders, jaws, and scribers used in general metrology and toolroom applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eGage blocks should be handled by metrology technicians or qualified machinists familiar with wringing technique and proper block care. Store blocks in a protective case away from moisture and contaminants when not in use. Clean contact surfaces with an appropriate solvent and lint-free cloth before and after use to prevent corrosion and maintain surface integrity. Do not drop or stack blocks on hard surfaces, as edge damage will compromise accuracy.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSize\u003c\/strong\u003e: 4.00000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAccuracy Grade\u003c\/strong\u003e: Grade 0\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCertification\u003c\/strong\u003e: NIST\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: VALUE COLLECTION\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 630-74006\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51690914939186,"sku":"630-74006","price":170.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b8f3689ef4e983ef7bd3fd06f24df02a.jpg?v=1788277541","url":"https:\/\/voomisupply.com\/products\/value-collection-630-74006-square-steel-gage-block-4-in-grade-0","provider":"Voomi Supply","version":"1.0","type":"link"}