{"product_id":"spi-cms160809199-electronic-drop-indicator-0-5-in","title":"Spi CMS160809199 Electronic Drop Indicator 0.5 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SPI CMS160809199 is a digital electronic drop indicator designed for precision measurement in machining, inspection, and metrology applications. It features a measuring range of 0 to 0.5 inches (12.50 mm) with an accuracy of 0.000160 inches (0.0040 mm) and a resolution of 0.000050 inches (0.0010 mm). The digital display provides clear readout in both inch and metric units. The center lug flat back mounting style allows secure fixture to magnetic bases and indicator holders commonly used in machine shops and quality control environments. Measuring force is 1.50 N, keeping contact pressure consistent and repeatable across measurement cycles.\u003c\/p\u003e\u003cp\u003eThis drop indicator is suited for surface comparison, runout checks, parallelism verification, and setup tasks on mills, lathes, and surface plates. The stem diameter of 3\/8 inch fits standard indicator holders and dovetail mounts found in most machine tool setups. The unit reads in both inch and metric, making it practical in shops that work to either standard. It is powered by a CR2032 battery, which is a widely available coin cell. Machinists, tool and die makers, quality technicians, and precision equipment service professionals are the primary users of this indicator.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eDigital display with inch and metric readout selectable on a single unit\u003c\/li\u003e\n\u003cli\u003eAccuracy of 0.000160 inches (0.0040 mm) for high-precision measurement tasks\u003c\/li\u003e\n\u003cli\u003eResolution of 0.000050 inches (0.0010 mm) for fine surface comparison work\u003c\/li\u003e\n\u003cli\u003eMeasuring range: 0.0000 to 0.5000 inches (0.00 to 12.50 mm)\u003c\/li\u003e\n\u003cli\u003eCenter lug flat back mount for compatibility with standard magnetic base holders\u003c\/li\u003e\n\u003cli\u003e3\/8 inch stem diameter fits most universal indicator holders\u003c\/li\u003e\n\u003cli\u003ePowered by CR2032 coin cell battery for straightforward field replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style drop indicator for use with standard 3\/8 inch stem indicator holders and magnetic base assemblies common in machine tool and inspection environments.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified machinists or metrology technicians. Secure the indicator stem in a clean, undamaged 3\/8 inch collet or lug-style holder and tighten to finger-firm contact before applying final clamp pressure. Verify the contact point is perpendicular to the measured surface to avoid cosine error. Do not overtighten the dovetail or lug clamp, as this can induce stem deflection and affect accuracy.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Measurement\u003c\/strong\u003e: 0.0000 inches (0.00 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Measurement\u003c\/strong\u003e: 0.5000 inches (12.50 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy (Decimal Inch)\u003c\/strong\u003e: 0.000160 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy (mm)\u003c\/strong\u003e: 0.0040 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResolution (Decimal Inch)\u003c\/strong\u003e: 0.000050 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResolution (mm)\u003c\/strong\u003e: 0.0010 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasuring Force\u003c\/strong\u003e: 1.50 N\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplay Type\u003c\/strong\u003e: Digital\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: Inch and Metric\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBack Type\u003c\/strong\u003e: Center Lug Flat Back\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStem Diameter\u003c\/strong\u003e: 3\/8 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery Size\u003c\/strong\u003e: CR2032\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 6.8 inches L x 3.6 inches W x 2 inches H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.7 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 41111600\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: CMS160809199\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51716166123826,"sku":"CMS160809199","price":164.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a7ea249792289c31ce04f008906a8488.jpg?v=1788522674","url":"https:\/\/voomisupply.com\/products\/spi-cms160809199-electronic-drop-indicator-0-5-in","provider":"Voomi Supply","version":"1.0","type":"link"}