{"product_id":"mitutoyo-301657-drop-indicator-replacement-rod-2-in","title":"Mitutoyo 301657 Drop Indicator Replacement Rod 2 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe MITUTOYO 301657 is a replacement contact rod designed for use with Mitutoyo drop indicators. The rod measures 2 inches (5 mm diameter) and is used to restore worn or damaged indicator components to factory specification. Drop indicator contact rods are precision-ground components that directly affect measurement accuracy, making correct replacement critical for maintaining gauge calibration and repeatability. This part is installed by metrology technicians, quality control personnel, and precision tool service professionals.\u003c\/p\u003e\u003cp\u003eThis replacement rod is suited for applications where the original contact rod on a Mitutoyo drop indicator has been damaged, worn, or lost. Drop indicators are commonly used in machine shops, inspection departments, and production environments to measure surface variation, runout, and part alignment. Keeping spare replacement rods on hand reduces downtime during precision measurement workflows.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e2-inch rod length for direct OEM-style replacement\u003c\/li\u003e\n\u003cli\u003e5 mm rod diameter for proper fit in compatible Mitutoyo drop indicator bodies\u003c\/li\u003e\n\u003cli\u003eSold individually (package quantity of 1)\u003c\/li\u003e\n\u003cli\u003eDesigned to restore measurement function and maintain gauge accuracy\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement rod for compatible Mitutoyo drop indicator models. Confirm fitment against your specific indicator model before ordering.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified metrology technician or tool service professional. Before servicing the indicator, ensure the gauge is removed from any active measurement setup and the spindle is relieved of load. Consult Mitutoyo service documentation for disassembly and reassembly procedures specific to your indicator model. After replacement, recalibrate the indicator against a known reference to verify accuracy.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRod Length\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRod Diameter\u003c\/strong\u003e: 5 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1 pound\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: 301657\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MITUTOYO","offers":[{"title":"Default Title","offer_id":51559188234546,"sku":"301657","price":25.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b03ab211c10cd8e162a825521e0103ad.jpg?v=1786429658","url":"https:\/\/voomisupply.com\/products\/mitutoyo-301657-drop-indicator-replacement-rod-2-in","provider":"Voomi Supply","version":"1.0","type":"link"}