{"product_id":"spi-14-653-0-dial-drop-indicator-0-25in-range","title":"Spi 14-653-0 Dial Drop Indicator 0.25in Range","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 14-653-0 is a dial drop indicator designed for precision dimensional measurement in machining, tooling, and metrology applications. It delivers a 0.25-inch total range with a 0.001-inch graduation and a 0-50-0 dial reading, making it suitable for comparative measurements, runout checks, and surface flatness verification. The housing is rigid forged brass, and the indicator includes a built-in revolution counter to track full-travel cycles. A Certificate of Calibration Traceable to NPL is included, confirming measurement accuracy at the time of shipment. Machinists, quality control technicians, and toolroom professionals are the primary installers and users of this instrument.\u003c\/p\u003e\n\u003cp\u003eThis indicator is suited for use on inspection fixtures, surface plates, magnetic bases, and transfer setups in both production and toolroom environments. The 0.001-inch graduation supports general-tolerance dimensional checks across a wide range of workpiece types. The flat and lug back mounting options provide flexibility for a variety of fixture and arm configurations. The 1.5-inch dial diameter allows for clear reading at typical bench working distances.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e0.25-inch measurement range with 0.001-inch graduation for precise comparative measurement\u003c\/li\u003e\n  \u003cli\u003e0-50-0 bidirectional dial reading for positive and negative deviation tracking\u003c\/li\u003e\n  \u003cli\u003eBuilt-in revolution counter tracks full-travel cycles during measurement\u003c\/li\u003e\n  \u003cli\u003eRigid forged brass housing for durability in shop environments\u003c\/li\u003e\n  \u003cli\u003eDual mounting options: flat back and lug back for fixture versatility\u003c\/li\u003e\n  \u003cli\u003eIncludes Certificate of Calibration Traceable to NPL and tolerance pointers\u003c\/li\u003e\n  \u003cli\u003eMeets AGD Group 2 and ASME B89.1.10M-2001 standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with standard AGD Group 2 dial indicator holders, magnetic bases, and fixtures accepting a 0.375-inch stem diameter and a No. 4-48 thread contact point.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eMounting and setup should be performed by a qualified machinist or metrology technician familiar with AGD indicator fixtures. Ensure the indicator stem is clamped securely without side-loading, which can affect measurement accuracy. Zero the dial at the reference surface before taking comparative readings. Contact points should be inspected and confirmed thread-compatible before attachment.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMeasurement Range\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDial Graduation\u003c\/strong\u003e: 0.001 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDial Reading\u003c\/strong\u003e: 0-50-0\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRange Per Revolution\u003c\/strong\u003e: 0.1 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDial Diameter\u003c\/strong\u003e: 1.625 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStem Diameter\u003c\/strong\u003e: 0.375 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: No. 4-48\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBack Type\u003c\/strong\u003e: Flat and Lug\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDial Color\u003c\/strong\u003e: White\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHousing Material\u003c\/strong\u003e: Rigid Forged Brass\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRevolution Counter\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: AGD Group 2, ASME B89.1.10M-2001\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCalibration Traceability\u003c\/strong\u003e: NPL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Weight\u003c\/strong\u003e: 0.52 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: English\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: SPI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 14-653-0\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51704882495794,"sku":"14-653-0","price":115.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4b230044af7d95672a01fe18487b0ff4.jpg?v=1788425579","url":"https:\/\/voomisupply.com\/products\/spi-14-653-0-dial-drop-indicator-0-25in-range","provider":"Voomi Supply","version":"1.0","type":"link"}