{"product_id":"mitutoyo-151-272-mechanical-micrometer-head-2-inch","title":"Mitutoyo 151-272 Mechanical Micrometer Head 2 Inch","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe MITUTOYO 151-272 is a mechanical micrometer head designed for precision measurement and positioning applications in industrial, tooling, and metrology environments. It covers a measurement range of 0 to 2 inches with an accuracy of 0.0002 inches, making it suitable for applications requiring tight dimensional control. The head features a flat rotating spindle with a carbide measuring face for durability under repeated use. A ratchet stop thimble with a diameter of 0.8268 inches ensures consistent measuring force. The overall assembly is 7.52 inches long and weighs 0.5 pounds. Installation and adjustment are typically performed by machinists, metrology technicians, or precision equipment maintenance personnel.\u003c\/p\u003e\u003cp\u003eThe MITUTOYO 151-272 is suited for use in machine tool setups, jig fixtures, inspection equipment, and custom measuring rigs where a reliable mechanical micrometer head is required. The chrome-plated finish resists corrosion and wear in shop environments. The 8 mm diameter spindle and 29 mm stem are sized for standard micrometer head mounting configurations commonly found in production and quality control settings.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMeasurement range: 0 to 2 inches with 0.0002 inch accuracy\u003c\/li\u003e\n\u003cli\u003eFlat rotating spindle with carbide measuring face for extended service life\u003c\/li\u003e\n\u003cli\u003eRatchet stop thimble ensures repeatable, consistent measuring force\u003c\/li\u003e\n\u003cli\u003eChrome-plated finish for corrosion and wear resistance\u003c\/li\u003e\n\u003cli\u003eSturdy construction suitable for use with or without a ratchet\u003c\/li\u003e\n\u003cli\u003eCompact stem design at 0.5 inches diameter for standard fixture mounting\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a replacement-style mechanical micrometer head for precision measurement fixtures, machine tools, and inspection equipment that accept a standard stem-mount micrometer head configuration.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is typically performed by a machinist or metrology technician. Power down or de-energize any automated equipment before installing or adjusting the micrometer head in a fixture. Secure the stem in the mounting bore to the fixture manufacturer's specified clamping method without overtightening, which can distort the stem bore and affect accuracy. Verify spindle movement and zeroing procedure after installation before taking measurements.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasurement Range\u003c\/strong\u003e: 0 to 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy\u003c\/strong\u003e: 0.0002 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraduation\u003c\/strong\u003e: 0.0100 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThimble Diameter\u003c\/strong\u003e: 0.8268 inches (21 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpindle Shape\u003c\/strong\u003e: Flat rotating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpindle Diameter\u003c\/strong\u003e: 0.315 inches (8 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpindle Length\u003c\/strong\u003e: 2.323 inches (59 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStem Diameter\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStem Length\u003c\/strong\u003e: 1.142 inches (29 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 7.52 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasuring Face Material\u003c\/strong\u003e: Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Chrome-plated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.5 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: 151-272\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MITUTOYO","offers":[{"title":"Default Title","offer_id":51563448533298,"sku":"151-272","price":238.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d2c2bdd753e3ff6071744c2dc5012e68.jpg?v=1786497865","url":"https:\/\/voomisupply.com\/products\/mitutoyo-151-272-mechanical-micrometer-head-2-inch","provider":"Voomi Supply","version":"1.0","type":"link"}