{"product_id":"mitutoyo-368-864-mechanical-inside-micrometer","title":"Mitutoyo 368-864 Mechanical Inside Micrometer","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe MITUTOYO 368-864 is a mechanical inside micrometer designed for precision internal bore measurement. It uses a three-contact-point configuration with a micrometer-based movement for stable, repeatable readings. The ratchet stop thimble controls measuring force consistently, which reduces operator error during use. Graduated at 0.0002 inches with an accuracy of 0.0001 inches, this instrument is suited for exacting measurement tasks in machine shops, manufacturing facilities, and maintenance environments. The measuring faces are alloy steel with a satin chrome finish that resists corrosion and reduces glare during inspection work.\u003c\/p\u003e\u003cp\u003eThe 368-864 is intended for professional metrology and precision measurement applications. It is well matched to tasks requiring accurate internal bore gauging where access or geometry limits the use of a standard two-point micrometer. The extension rod capability allows the instrument to reach into deeper bores, with a maximum extension rod length of 5.9 inches. Machinists, quality control technicians, and tool-and-die professionals are the typical end users of this instrument.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eThree-point contact design provides stable, self-centering measurement inside bores\u003c\/li\u003e\n\u003cli\u003eRatchet stop thimble ensures consistent measuring force across readings\u003c\/li\u003e\n\u003cli\u003eMicrometer-based movement delivers 0.0002 inch graduation and 0.0001 inch accuracy\u003c\/li\u003e\n\u003cli\u003eAlloy steel measuring faces with satin chrome finish for durability and corrosion resistance\u003c\/li\u003e\n\u003cli\u003eExtension rod type with maximum rod length of 5.9 inches for deep bore access\u003c\/li\u003e\n\u003cli\u003eIncludes protective plastic storage case\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a precision inside micrometer for general industrial and metrology applications where internal bore measurement to 0.65 inch range is required.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis instrument requires no installation but should be handled and stored according to standard metrology practices. Zero and calibrate the micrometer against a known reference before use. Keep the measuring faces clean and free of debris to preserve accuracy. Store in the included plastic case when not in use to protect the instrument from damage and contamination.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMicrometer Type\u003c\/strong\u003e: Inside\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasurement Range\u003c\/strong\u003e: 0.65 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation\u003c\/strong\u003e: 0.0002 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy\u003c\/strong\u003e: 0.0001 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThimble Type\u003c\/strong\u003e: Ratchet Stop\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRod Type\u003c\/strong\u003e: Extension\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Extension Rod Length\u003c\/strong\u003e: 5.9 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\u003eMeasuring Face Material\u003c\/strong\u003e: Alloy Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Satin Chrome\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\u003eIncludes\u003c\/strong\u003e: Plastic Case\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: MITUTOYO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 368-864\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MITUTOYO","offers":[{"title":"Default Title","offer_id":51557722095922,"sku":"368-864","price":709.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b8d4a89b11f1f356ead598b7e1f30f82.jpg?v=1786393537","url":"https:\/\/voomisupply.com\/products\/mitutoyo-368-864-mechanical-inside-micrometer","provider":"Voomi Supply","version":"1.0","type":"link"}