{"product_id":"starrett-53312-dial-drop-indicator-0-5-in-0-001-grad","title":"Starrett 53312 Dial Drop Indicator 0-5 in 0.001 Grad","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 53312 is a dial drop indicator designed for precise linear measurement in shop, field, and maintenance applications. It covers a 0 to 5 inch measurement range with 0.001 inch graduations and a 0-100 dial reading scale, providing resolution suitable for dimensional inspection, runout checks, and surface comparison work. The 2-1\/4 inch white dial face carries a no-glare satin finish and is protected by an unbreakable crystal. Jeweled bearings support smooth, repeatable spindle movement. The stainless steel stem measures 0.375 inches in diameter and 4.8125 inches in length. A built-in revolution counter tracks full-range travel across the 0.1 inch per revolution mechanism. The unit ships with both a lug back and a flat back included.\u003c\/p\u003e\u003cp\u003eThis indicator is used in precision measurement tasks across machine shops, tool rooms, HVAC equipment alignment, and industrial maintenance. Its 5-inch range makes it well suited for applications requiring extended travel beyond the typical 1-inch short-range indicator, such as checking shaft runout on large rotating equipment, verifying flatness across long surfaces, or inspecting deep bore dimensions. Machinists, millwrights, and maintenance technicians are the primary installers and users of this instrument.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e0 to 5 inch measurement range with 0.001 inch graduation for high-resolution readings\u003c\/li\u003e\n\u003cli\u003eJeweled bearing mechanism for smooth, accurate spindle travel\u003c\/li\u003e\n\u003cli\u003e0.1 inch per revolution with built-in revolution counter for full-range tracking\u003c\/li\u003e\n\u003cli\u003eNo-glare satin finish white dial with unbreakable crystal lens\u003c\/li\u003e\n\u003cli\u003eStainless steel stem, 0.375 inches in diameter and 4.8125 inches in length\u003c\/li\u003e\n\u003cli\u003eIncludes both lug back and flat back for flexible mounting options\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style drop indicator compatible with standard 0.375 inch stem clamps, dial indicator holders, magnetic bases, and surface gauge arms used in general metrology and precision measurement setups.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eMount using a dial indicator holder or magnetic base that accepts a 0.375 inch stem diameter. Ensure the spindle axis is perpendicular to the measured surface to avoid cosine error in readings. Do not exceed the stated 5 inch travel range, as forcing the spindle beyond its limit can damage the internal mechanism. No electrical connections or power sources are required for this instrument.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasurement Range\u003c\/strong\u003e: 0 to 5 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: 0-100\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: 2-1\/4 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\u003eStem Length\u003c\/strong\u003e: 4.8125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial Color\u003c\/strong\u003e: White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBack Type\u003c\/strong\u003e: Lug (flat back included)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBearing Type\u003c\/strong\u003e: Jeweled\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRevolution Counter\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrystal\u003c\/strong\u003e: Unbreakable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: No-Glare Satin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStem Material\u003c\/strong\u003e: Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: English (inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAGD Group\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.4 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 41111630\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 53312\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51544573477170,"sku":"53312","price":838.25,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5b0e7cf937e834b91ebe192e41317952.jpg?v=1785930373","url":"https:\/\/voomisupply.com\/products\/starrett-53312-dial-drop-indicator-0-5-in-0-001-grad","provider":"Voomi Supply","version":"1.0","type":"link"}