{"product_id":"starrett-72451-ball-contact-point-steel-dial-test-indicator","title":"Starrett 72451 Ball Contact Point Steel Dial Test Indicator","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe STARRETT 72451 is a ball-style contact point designed for use with dial test indicators in precision measurement applications. The contact tip is a 0.031-inch diameter steel ball mounted on a contact point measuring 0.625 inches in total length. This replacement contact point threads into compatible Starrett dial test indicators and provides a consistent, low-friction contact surface for measuring small bores, grooves, and features that require a spherical tip. Machinists, toolmakers, and metrology technicians install this part when the original contact point is worn or when the application requires a ball-style tip instead of a flat or pointed contact.\u003c\/p\u003e\n\u003cp\u003eThis contact point is suited for shop-floor and inspection-room environments where Starrett 811 and 811M dial test indicators are in use. Typical applications include bore runout checks, surface alignment, slot measurement, and any inspection task where a small-diameter ball tip improves access or accuracy. The steel construction holds up under repeated contact cycles in standard machining and quality-control environments.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eBall-style tip with 0.031-inch diameter for access to small features and tight geometries\u003c\/li\u003e\n  \u003cli\u003eContact point length of 0.625 inches for standard reach on compatible indicators\u003c\/li\u003e\n  \u003cli\u003eSteel construction for durability through repeated measurement cycles\u003c\/li\u003e\n  \u003cli\u003eDirect OEM-style replacement identified as Point Identification PT23062\u003c\/li\u003e\n  \u003cli\u003eCompatible with Starrett 811 and 811M dial test indicators\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with Starrett 811 and 811M Dial Test Indicators as stated by the manufacturer.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eContact point replacement is performed by machinists and metrology technicians familiar with dial test indicator service. Remove the indicator from service before replacing the contact point and handle the ball tip carefully to avoid damage to the precision contact surface. Thread the contact point in by hand to the specified engagement depth using the appropriate small wrench or driver for the indicator body — do not overtighten. Verify indicator function and zeroing after installation before returning the tool to service.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStyle\u003c\/strong\u003e: Ball\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBall Diameter\u003c\/strong\u003e: 0.031 inches (0.80 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eContact Point Length\u003c\/strong\u003e: 0.625 inches (15.88 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTip Diameter\u003c\/strong\u003e: 0.032 inches (0.80 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eContact Point Material\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Identification\u003c\/strong\u003e: PT23062\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.5 pounds\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: 72451\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51538865946930,"sku":"72451","price":36.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/07574839078f820ff0fa6cb878941253.jpg?v=1785828544","url":"https:\/\/voomisupply.com\/products\/starrett-72451-ball-contact-point-steel-dial-test-indicator","provider":"Voomi Supply","version":"1.0","type":"link"}