{"product_id":"spi-ms160712029-inside-tubular-micrometer-2-20-in","title":"Spi MS160712029 Inside Tubular Micrometer 2-20 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SPI MS160712029 is a mechanical inside tubular micrometer designed for precision internal measurement across a range of 2.0000 to 20.0000 inches. It delivers an accuracy of 0.000100 inches with a graduation of 0.001 inches, making it suited for high-tolerance bore and internal diameter work. The friction thimble provides consistent measuring force to reduce operator-induced error. Solid carbide measuring faces resist wear during repeated use. The instrument is supplied with a standard for micrometer head calibration, confirming it arrives ready for verified use. Metrologists, machinists, and quality control technicians are the primary users of this tool in manufacturing and inspection environments.\u003c\/p\u003e\u003cp\u003eThis micrometer is used in precision machining shops, toolrooms, and quality inspection stations where accurate internal bore measurement is required. It is well suited for measuring cylinders, bores, and large-diameter internal features that exceed the range of standard jaw-type or bore gauges. The set includes 6 extension rods, allowing the user to reach the full 2.0000 to 20.0000 inch measurement range with a single instrument. It is calibrated from the factory and includes a setting standard for ongoing field verification.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMeasurement range: 2.0000 to 20.0000 inches\u003c\/li\u003e\n\u003cli\u003eGraduation of 0.001 inches with accuracy to 0.000100 inches\u003c\/li\u003e\n\u003cli\u003eFriction thimble for consistent, repeatable measuring force\u003c\/li\u003e\n\u003cli\u003eSolid carbide measuring faces for extended wear resistance\u003c\/li\u003e\n\u003cli\u003eIncludes 6 extension rods to span the full measurement range\u003c\/li\u003e\n\u003cli\u003eSupplied with a calibration standard for micrometer head verification\u003c\/li\u003e\n\u003cli\u003eFactory calibrated; no digital counter or battery required\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standalone mechanical inside tubular micrometer for general precision internal measurement applications where a 2.0000 to 20.0000 inch range is required.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis instrument is handled and used by machinists, metrologists, and quality technicians rather than installed in a system. Before use, verify calibration against the supplied standard and allow the tool and workpiece to reach the same ambient temperature to minimize thermal expansion error. Store extension rods and the calibration standard in the provided case to prevent damage to measuring surfaces. Do not apply excessive force when seating extension rods or engaging the measuring faces against a bore surface.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasurement Range\u003c\/strong\u003e: 2.0000 to 20.0000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation\u003c\/strong\u003e: 0.001 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy\u003c\/strong\u003e: 0.000100 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThimble Type\u003c\/strong\u003e: Friction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasuring Face Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Extension Rods\u003c\/strong\u003e: 6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalibrated\u003c\/strong\u003e: Yes\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: 1 pound\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SPI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: MS160712029\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51722328015154,"sku":"MS160712029","price":215.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4fa0e3879133cfa167ec6bc02b9a0ac9.jpg?v=1788589434","url":"https:\/\/voomisupply.com\/products\/spi-ms160712029-inside-tubular-micrometer-2-20-in","provider":"Voomi Supply","version":"1.0","type":"link"}