{"product_id":"starrett-66428-ball-anvil-micrometer-0-to-1-inch","title":"Starrett 66428 Ball Anvil Micrometer 0 to 1 Inch","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe STARRETT 66428 is a mechanical ball anvil micrometer designed for precision outside measurement from 0 to 1 inch. The carbide-faced ball anvil and flat carbide spindle provide durable contact surfaces suited for measuring curved or irregular workpiece geometries where a standard flat anvil would not seat correctly. Graduation is 0.001 inch, allowing direct readings without interpolation. The satin chrome finish reduces glare under shop lighting. A plain thimble and plain lock nut are included along with a wrench. This tool is used by machinists, tool-and-die tradespeople, and precision measurement technicians working in manufacturing and fabrication environments.\u003c\/p\u003e\n\u003cp\u003eThe 66428 is applied in situations where a conventional flat anvil micrometer cannot make accurate contact — such as measuring wall thickness on tubing, seating depth on curved surfaces, or diameter at specific points on contoured parts. The ball anvil design concentrates the contact point, ensuring repeatable seating. The mechanical operation requires no battery and functions in environments where electronic instruments may be impractical. Typical users include machine shop technicians, quality control inspectors, and maintenance tradespeople performing close-tolerance work.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eBall anvil with carbide face for reliable contact on curved and irregular surfaces\u003c\/li\u003e\n  \u003cli\u003eFlat carbide spindle for consistent wear resistance and measurement accuracy\u003c\/li\u003e\n  \u003cli\u003e0.001 inch graduation for direct, precise readings\u003c\/li\u003e\n  \u003cli\u003eSatin chrome finish minimizes glare in shop and inspection environments\u003c\/li\u003e\n  \u003cli\u003ePlain thimble with plain lock nut — no ratchet mechanism to maintain\u003c\/li\u003e\n  \u003cli\u003eIncludes lock nut and wrench for field adjustment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard 0 to 1 inch range mechanical outside micrometer for general precision measurement applications in machining, fabrication, and quality control.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eBall anvil micrometers are hand tools requiring no installation. Before use, clean the anvil and spindle faces with a lint-free cloth and verify zero calibration using a standard reference. Store the micrometer with the spindle backed off slightly from the anvil to prevent spring fatigue. Do not use power tools or impact methods to advance the thimble.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMeasurement Range\u003c\/strong\u003e: 0 to 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGraduation\u003c\/strong\u003e: 0.001 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperation Type\u003c\/strong\u003e: Mechanical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnvil Type\u003c\/strong\u003e: Ball\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpindle Type\u003c\/strong\u003e: Flat\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnvil Material\u003c\/strong\u003e: Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpindle Material\u003c\/strong\u003e: Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnvil Diameter\u003c\/strong\u003e: 0.1875 inches (4.7 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpindle Diameter\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThimble Type\u003c\/strong\u003e: Plain\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLock Nut Type\u003c\/strong\u003e: Plain\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Satin Chrome\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncludes\u003c\/strong\u003e: Lock Nut, Wrench\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.438 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: California Proposition 65\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 41111601\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: 66428\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51542902767922,"sku":"66428","price":286.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/147a12307b769ebef26b52bc81c29611.jpg?v=1785910404","url":"https:\/\/voomisupply.com\/products\/starrett-66428-ball-anvil-micrometer-0-to-1-inch","provider":"Voomi Supply","version":"1.0","type":"link"}