{"product_id":"mitutoyo-368-866-inside-micrometer-0-8-1-0-in-range","title":"Mitutoyo 368-866 Inside Micrometer 0.8-1.0 in Range","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe MITUTOYO 368-866 is a mechanical inside micrometer designed for precision internal bore and hole measurement. It uses a three-point contact system to center itself automatically within a bore, delivering repeatable readings without the alignment challenges of two-point designs. The measuring range spans 0.8000 to 1.0000 inches, with a graduation of 0.0002 inches and an accuracy of 0.000150 inches. The ratchet stop thimble controls applied measuring force to prevent overloading and keeps readings consistent across multiple uses. The measuring faces are alloy steel with a satin chrome finish for durability and corrosion resistance. Machinists, tool and die makers, and quality control technicians use this instrument for production and inspection work.\u003c\/p\u003e\u003cp\u003eThe 368-866 is suited for internal measurement tasks in machine shops, manufacturing facilities, and inspection departments. It is configured for bore diameters between 0.8000 and 1.0000 inches, making it appropriate for medium small bores common in precision machined components. The extension rod capability, with a maximum extension rod length of 5.9000 inches, allows reach into deeper bores. The micrometer-based movement provides stable, fine-resolution readings. It ships in a plastic case for storage and transport protection.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eThree-point contact system self-centers in bore for consistent, repeatable measurement\u003c\/li\u003e\n\u003cli\u003eMeasuring range of 0.8000 to 1.0000 inches with 0.0002 inch graduation\u003c\/li\u003e\n\u003cli\u003eAccuracy of 0.000150 inches for precision inspection applications\u003c\/li\u003e\n\u003cli\u003eRatchet stop thimble regulates measuring force and improves repeatability\u003c\/li\u003e\n\u003cli\u003eAlloy steel measuring faces with satin chrome finish for wear and corrosion resistance\u003c\/li\u003e\n\u003cli\u003eExtension rod support up to 5.9000 inches for deeper bore access\u003c\/li\u003e\n\u003cli\u003eIncludes plastic carrying and storage case\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style mechanical inside micrometer for precision bore measurement in the 0.8000 to 1.0000 inch range. No specific system or model compatibility data was provided in the product input.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInside micrometers of this type are handled and used by machinists, metrologists, and quality technicians rather than installed as fixed components. Before use, verify the instrument is clean and undamaged, and allow it to reach ambient temperature to avoid thermal expansion errors. Do not apply excessive force when seating the contact points in a bore; the ratchet stop thimble is designed to limit this. Store the instrument in its included case when not in use to protect the measuring faces and thimble mechanism.\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\u003eMeasuring Range\u003c\/strong\u003e: 0.8000 to 1.0000 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: 0.000150 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\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: 5.9000 inches\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\u003eIncludes\u003c\/strong\u003e: Plastic Case\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 2 pounds\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: 368-866\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MITUTOYO","offers":[{"title":"Default Title","offer_id":51561587015986,"sku":"368-866","price":756.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/debc83ba54866f34612cfa5f988b9799.jpg?v=1786466059","url":"https:\/\/voomisupply.com\/products\/mitutoyo-368-866-inside-micrometer-0-8-1-0-in-range","provider":"Voomi Supply","version":"1.0","type":"link"}