{"product_id":"starrett-71977-micrometer-depth-gage-rod-4-to-5-in","title":"Starrett 71977 Micrometer Depth Gage Rod 4 to 5 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe STARRETT 71977 is a replacement micrometer rod designed for use with 440 Series Micrometer Depth Gages. It extends the measurement range of the depth gage from 4 to 5 inches, allowing technicians and machinists to take accurate depth measurements at the upper end of that range. The rod measures 5.0 inches in overall length with a rod diameter of 1\/8 inch (3.20 mm). It is an accessory-grade component intended for precision measurement work in tool rooms, machine shops, and field service environments where depth gage versatility is required.\u003c\/p\u003e\n\u003cp\u003eThis rod is used wherever a 440 Series Micrometer Depth Gage needs to be configured for the 4 to 5 inch measurement range. Typical applications include measuring bore depths, slot depths, and step heights on machined parts. Machinists, tool and die makers, and quality control technicians working in manufacturing or maintenance settings will find this rod a straightforward swap-in when reconfiguring a 440 Series depth gage for different measurement tasks.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eExtends 440 Series Micrometer Depth Gage range to the 4 to 5 inch interval\u003c\/li\u003e\n  \u003cli\u003eOverall length of 5.0 inches for accurate depth measurement at range limit\u003c\/li\u003e\n  \u003cli\u003eRod diameter of 1\/8 inch (3.20 mm) for compatibility with 440 Series gage bodies\u003c\/li\u003e\n  \u003cli\u003eLightweight at 0.1 pounds, suited for portable toolbox storage\u003c\/li\u003e\n  \u003cli\u003eSold individually — package quantity of 1\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 range-extension rod accessory for the 4 to 5 inch measurement interval.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation of the rod is performed by a machinist or technician familiar with micrometer depth gage assembly. Before swapping rods, ensure the gage spindle is fully retracted and the gage is not under load. Follow the gage manufacturer's instructions for rod seating and lock-down to maintain measurement accuracy. Verify zero calibration after any rod change before taking measurements.\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\u003eFor Use With\u003c\/strong\u003e: 440 Series Micrometer Depth Gages\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMeasurement Range\u003c\/strong\u003e: 4 to 5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Measurement\u003c\/strong\u003e: 5.0 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 5.0 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: 71977\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51544436277554,"sku":"71977","price":37.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5c91c45f24bf629801b33bede72abf8e.jpg?v=1785926515","url":"https:\/\/voomisupply.com\/products\/starrett-71977-micrometer-depth-gage-rod-4-to-5-in","provider":"Voomi Supply","version":"1.0","type":"link"}