{"product_id":"starrett-67682-mechanical-micrometer-8-inch-range","title":"Starrett 67682 Mechanical Micrometer 8 Inch Range","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe STARRETT 67682 is a mechanical outside micrometer designed for precision measurement in demanding shop and field environments. It covers a measurement range up to 8 inches with a graduation of 0.0003 inches and an accuracy of 0.000300 inches, making it suitable for high-tolerance inspection work. The ratchet stop thimble provides consistent measuring pressure across repeated measurements, reducing operator-to-operator variation. Measuring faces are solid carbide for long-term wear resistance. The instrument ships complete with a case, contacts, setting ring, instructions, and wrenches.\u003c\/p\u003e\n\u003cp\u003eThis micrometer is intended for use in precision machining, tool and die, metrology labs, and maintenance shops where tight dimensional tolerances must be verified. The 8-inch range addresses larger-diameter workpieces and components that standard 1-inch or 3-inch micrometers cannot reach. A single setting ring with a 7.0000-inch diameter is included for calibration verification. The gage depth of 4.5 inches and maximum extension rod length of 6.0000 inches extend measurement versatility on deep or recessed features. Machinists, quality control technicians, and toolmakers are the primary users.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eMeasurement range up to 8 inches with 0.0003-inch graduation for fine-resolution readings\u003c\/li\u003e\n  \u003cli\u003eRatchet stop thimble ensures repeatable, consistent contact pressure\u003c\/li\u003e\n  \u003cli\u003eSolid carbide measuring faces resist wear on hardened and abrasive workpiece materials\u003c\/li\u003e\n  \u003cli\u003eIncludes setting ring, contacts, wrenches, and protective case for field-ready deployment\u003c\/li\u003e\n  \u003cli\u003eMaximum extension rod length of 6.0000 inches for deep or extended measurement reach\u003c\/li\u003e\n  \u003cli\u003eThree contact points provide stable, accurate seating on cylindrical or irregular surfaces\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standalone precision measuring instrument compatible with standard micrometer calibration and setting ring practices. The included 7.0000-inch diameter setting ring is matched to this instrument for field verification.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis is a precision measuring instrument, not an installed component. Handle with care to avoid dropping or thermal shock, as either can affect calibration. Before use, verify the instrument against the included setting ring and adjust as needed using the provided wrenches. Store in the supplied case when not in use to protect the carbide measuring faces and maintain calibration stability.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Measurement Range\u003c\/strong\u003e: 8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Measurement\u003c\/strong\u003e: 175.00 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGraduation\u003c\/strong\u003e: 0.0003 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAccuracy\u003c\/strong\u003e: 0.000300 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThimble Type\u003c\/strong\u003e: Ratchet Stop\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMeasuring Face Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGage Depth\u003c\/strong\u003e: 4.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Extension Rod Length\u003c\/strong\u003e: 6.0000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting Ring Diameter\u003c\/strong\u003e: 7.0000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Contact Points\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Setting Rings Included\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDigital Counter\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 32 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: STARRETT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 67682\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51538878169394,"sku":"67682","price":5657.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f738d5268496a5fadb50710546488097_fa99f7e8-0f6a-411b-b618-ed5250038141.jpg?v=1785828714","url":"https:\/\/voomisupply.com\/products\/starrett-67682-mechanical-micrometer-8-inch-range","provider":"Voomi Supply","version":"1.0","type":"link"}