{"product_id":"spi-ms160712018-micrometer-calibration-standard-18-in","title":"Spi MS160712018 Micrometer Calibration Standard 18 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI MS160712018 is an 18-inch micrometer calibration standard designed to verify and maintain the accuracy of outside micrometers used in precision measurement applications. Built with a spherical end profile, this calibration bar delivers accuracy up to 0.0002 inches, making it suitable for quality control and tool certification workflows. A heat-insulating handle is included to prevent thermal expansion from hand contact during use, preserving measurement integrity. Metrology technicians, tool calibration specialists, and precision machinists rely on this type of standard to confirm that micrometers are reading within acceptable tolerance before production or inspection begins.\u003c\/p\u003e\n\u003cp\u003eThis calibration standard is intended for shop-floor and laboratory environments where micrometer accuracy must be verified at 18 inches of reach. Typical applications include periodic tool certification, incoming inspection setups, and gage R and R studies. The spherical end geometry ensures consistent, repeatable contact during calibration checks. The unit ships factory calibrated and is ready for use upon receipt.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e18-inch maximum length for calibrating large-range outside micrometers\u003c\/li\u003e\n  \u003cli\u003eAccuracy up to 0.0002 inches for precision verification work\u003c\/li\u003e\n  \u003cli\u003eSpherical end shape provides consistent contact point during calibration\u003c\/li\u003e\n  \u003cli\u003eFactory calibrated — ready for immediate use\u003c\/li\u003e\n  \u003cli\u003eIncludes heat-insulating handle to minimize thermal error from handling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with outside micrometers requiring an 18-inch calibration reference standard. Confirm your micrometer range and end-contact type before use.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eCalibration standards are handled and stored by metrology or quality control personnel — no installation tools or trade licensing are required. Always hold the standard by the heat-insulating handle to avoid transferring body heat, which can cause thermal expansion and introduce measurement error. Store the standard in its case when not in use, away from temperature extremes and humidity. Follow your facility's calibration interval and traceability procedures when using this standard to certify micrometers.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Length\u003c\/strong\u003e: 18 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAccuracy\u003c\/strong\u003e: 0.0002 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Shape\u003c\/strong\u003e: Spherical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCalibrated\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncludes Heat Insulating Handle\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFor Use With\u003c\/strong\u003e: Micrometers\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 2.52 pounds\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: SPI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: MS160712018\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51691208606002,"sku":"MS160712018","price":93.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e5f751fd30c87aab6a8f7d19491454d2.jpg?v=1788281545","url":"https:\/\/voomisupply.com\/products\/spi-ms160712018-micrometer-calibration-standard-18-in","provider":"Voomi Supply","version":"1.0","type":"link"}