{"product_id":"starrett-71976-micrometer-rod-3-to-4-inches","title":"Starrett 71976 Micrometer Rod 3 to 4 Inches","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe STARRETT 71976 is a replacement micrometer rod designed for use with 440 Series Micrometer Depth Gages. It extends the measurement range of the depth gage from 3 to 4 inches, allowing precise depth readings in that interval. The rod measures 4.0 inches in overall length with a rod diameter of 1\/8 inch (3.20 mm). Machined to OEM dimensional tolerances, it maintains the accuracy and repeatability that depth gage work demands. Metrology technicians, machinists, and quality control personnel use this rod as a direct accessory swap when expanding or replacing worn depth gage rod sets.\u003c\/p\u003e\n\u003cp\u003eThis rod is intended for bench and floor-level inspection work where 440 Series Micrometer Depth Gages are already in service. Typical applications include checking bore depths, step heights, and slot depths on machined components in manufacturing and job-shop environments. The rod type anvil design suits precision measurement tasks where a small-diameter contact point is required to reach confined features.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eExtends depth gage range from 3 to 4 inches\u003c\/li\u003e\n  \u003cli\u003eRod diameter of 1\/8 inch (3.20 mm) for access to confined features\u003c\/li\u003e\n  \u003cli\u003e4.0 inch overall length for full range coverage\u003c\/li\u003e\n  \u003cli\u003eRod-type anvil design compatible with 440 Series gage bodies\u003c\/li\u003e\n  \u003cli\u003eLightweight at 0.1 pounds for easy bench handling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with STARRETT 440 Series Micrometer Depth Gages as a direct accessory rod replacement or range extension.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation of micrometer depth gage rods is performed by metrology technicians or machinists familiar with the 440 Series gage system. Before swapping rods, clean the gage spindle and rod seating surfaces to prevent contamination that could affect zero calibration. Follow the gage manufacturer's procedure for rod installation and verify zero after any rod change. No special tools are required beyond those supplied with the gage.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAccessory Type\u003c\/strong\u003e: Rod\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Measurement\u003c\/strong\u003e: 4.0 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMeasurement Range\u003c\/strong\u003e: 3 to 4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4.0 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRod Diameter\u003c\/strong\u003e: 1\/8 inch (3.20 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnvil Type\u003c\/strong\u003e: Rod\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: 71976\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51538339758386,"sku":"71976","price":37.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/2a2f0302e7dae55b5c3e0d0c63438ce2.jpg?v=1785823294","url":"https:\/\/voomisupply.com\/products\/starrett-71976-micrometer-rod-3-to-4-inches","provider":"Voomi Supply","version":"1.0","type":"link"}