{"product_id":"starrett-55959-outside-micrometer-1-in-ratchet-stop","title":"Starrett 55959 Outside Micrometer 1 in Ratchet Stop","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 55959 is a mechanical outside micrometer built for precise dimensional measurement of external workpiece features. It covers a measurement range of 0 to 1 inch with a graduation of 0.0001 inches and an accuracy of 0.000050 inches, making it a reliable tool for applications where close tolerances are critical. The thimble uses a ratchet stop mechanism to deliver consistent measuring pressure on every reading. A digital counter is integrated into the frame for fast readout, and a ring-style lock nut secures the spindle position once a measurement is taken. Measuring faces are solid carbide for durability and wear resistance.\u003c\/p\u003e\u003cp\u003eThis micrometer is suited for use in machine shops, tool rooms, and manufacturing environments where accurate outside diameter or thickness measurements are required. It is appropriate for professional machinists, quality control inspectors, and precision fabricators working with metal, plastic, or similar materials. The flat anvil configuration supports a wide range of standard workpiece geometries. The one-piece spindle design contributes to dimensional stability during repeated use across shifts or varying ambient conditions.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMeasurement range of 0 to 1 inch with 0.0001 inch graduation\u003c\/li\u003e\n\u003cli\u003eAccuracy of 0.000050 inches for high-precision measurement work\u003c\/li\u003e\n\u003cli\u003eRatchet stop thimble ensures consistent, repeatable measuring pressure\u003c\/li\u003e\n\u003cli\u003eSolid carbide measuring faces resist wear over extended service life\u003c\/li\u003e\n\u003cli\u003eIntegrated digital counter for fast, unambiguous reading\u003c\/li\u003e\n\u003cli\u003eRing lock nut included for spindle position retention; wrench also included\u003c\/li\u003e\n\u003cli\u003eExtremely hard and stable one-piece spindle construction\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard outside micrometer suitable for general-purpose precision measurement applications requiring a 0 to 1 inch measuring range.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis instrument is a hand-held precision measuring tool and does not require installation in the traditional sense. Before use, verify the micrometer reads zero with the anvil and spindle faces in clean contact, or use the included wrench to adjust the zero setting. Keep measuring faces clean and free of debris to maintain accuracy. Store in a protective case away from temperature extremes and magnetic fields to preserve calibration.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Measurement Range\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation\u003c\/strong\u003e: 0.0001 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy\u003c\/strong\u003e: 0.000050 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThimble Type\u003c\/strong\u003e: Ratchet Stop\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnvil Type\u003c\/strong\u003e: Flat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnvil Diameter\u003c\/strong\u003e: 0.2500 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpindle Diameter\u003c\/strong\u003e: 0.2500 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasuring Face Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLock Nut Type\u003c\/strong\u003e: Ring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital Counter\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotating Spindle\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Enamel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.563 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: California Proposition 65\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes\u003c\/strong\u003e: Lock Nut, Wrench\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 55959\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51538818826546,"sku":"55959","price":416.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/155cd23f95a95a94ccb7a71fc8f8bbe8.jpg?v=1785827423","url":"https:\/\/voomisupply.com\/products\/starrett-55959-outside-micrometer-1-in-ratchet-stop","provider":"Voomi Supply","version":"1.0","type":"link"}