{"product_id":"spi-21-115-1-ball-contact-point-steel-tesa-test-indicators","title":"Spi 21-115-1 Ball Contact Point Steel Tesa Test Indicators","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 21-115-1 is a steel ball contact point designed for use with dial test indicators. It replaces the standard contact tip on compatible test indicators, providing a precise spherical contact surface for accurate measurement readings. The ball diameter is 0.059 inches (1.50 mm) and the contact point length is 0.497 inches. This type of contact point is used by machinists, quality control technicians, and tool and die professionals who require consistent stylus contact when measuring runout, flatness, or surface variation on workpieces.\u003c\/p\u003e\n\u003cp\u003eThis contact point is suited for precision measurement applications in machine shops, manufacturing facilities, and inspection environments. It threads onto the indicator spindle in place of the original contact point. The 0.059-inch ball diameter makes it appropriate for general-purpose indicator work where a small, well-defined contact area is needed. Compatible with Tesa test indicators as specified by the manufacturer.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eBall diameter of 0.059 inches (1.50 mm) for precise point contact\u003c\/li\u003e\n  \u003cli\u003eContact point length of 0.497 inches\u003c\/li\u003e\n  \u003cli\u003eSteel construction for durability and wear resistance\u003c\/li\u003e\n  \u003cli\u003eDesigned as a direct replacement contact tip for compatible test indicators\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 Tesa test indicators as stated by the manufacturer.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eContact point replacement is typically performed by machinists or metrology technicians. Before replacing the contact tip, remove the indicator from any active measuring setup and secure it in a holding fixture or indicator stand. Use the appropriate flat wrench or contact point tool to unthread the existing tip without applying side load to the indicator spindle. Do not overtighten the replacement contact point, as excessive torque can damage the spindle thread.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBall Diameter\u003c\/strong\u003e: 0.059 inches (1.50 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eContact Point Length\u003c\/strong\u003e: 0.497 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eContact Point Material\u003c\/strong\u003e: Steel\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: 0.1 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: SPI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 21-115-1\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51695903113522,"sku":"21-115-1","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9a55930560e49f0151ab2b7a1d3d2a22.jpg?v=1788339246","url":"https:\/\/voomisupply.com\/products\/spi-21-115-1-ball-contact-point-steel-tesa-test-indicators","provider":"Voomi Supply","version":"1.0","type":"link"}