{"product_id":"spi-21-275-3-ball-point-contact-points-14-pc-agd","title":"Spi 21-275-3 Ball Point Contact Points 14 Pc Agd","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 21-275-3 is a 14-piece ball point contact point set designed for use with AGD (American Gage Design) dial indicators. The set includes a variety of interchangeable contact point styles — ball, radius, conical, flat face, and needle — giving metrology technicians and tool room staff the flexibility to measure across curved, recessed, or irregular surfaces without swapping between separate kits. The steel ball construction ensures consistent contact and wear resistance under repeated measuring cycles. At 2 pounds, the full set ships in a compact case sized at 6 inches long, 5 inches wide, and 1 inch in height.\u003c\/p\u003e\n\u003cp\u003eThis set is suited for tool rooms, quality control departments, and precision machining environments where AGD-style dial indicators are the standard measuring instrument. The variety of point styles allows a single technician to move from bore measurement to surface inspection to thread checking without sourcing additional accessories. Typical users include machinists, QC inspectors, and metrology technicians working in manufacturing, aerospace, or general industrial shops.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e14 interchangeable contact points covering ball, radius, flat face, conical tip, and needle point styles\u003c\/li\u003e\n  \u003cli\u003eSteel ball material for durability and repeatable contact geometry\u003c\/li\u003e\n  \u003cli\u003eCompatible with AGD dial indicators — the industry-standard gage body format\u003c\/li\u003e\n  \u003cli\u003eIncludes a shock-absorbing point for use on surfaces where indicator protection is a concern\u003c\/li\u003e\n  \u003cli\u003eCompact storage case: 6 inches long, 5 inches wide, 1 inch tall\u003c\/li\u003e\n  \u003cli\u003eShips as a single unit package with no minimum order requirement beyond one set\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with AGD (American Gage Design) dial indicators as stated by the manufacturer.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eContact point sets are installed by qualified metrology or tool room personnel. Before swapping contact points, ensure the dial indicator is removed from active use and secured in a holding fixture or stand to prevent damage. Use the appropriate spanner or contact point wrench to thread points to the correct snug fit — avoid overtightening, which can damage the indicator stem threads. Follow any applicable shop calibration procedures after changing contact point style to verify zero and travel accuracy.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eContact Point Style\u003c\/strong\u003e: Ball\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBall Material\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Pieces\u003c\/strong\u003e: 14\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncludes\u003c\/strong\u003e: .118 diameter ball point x 5\/16 inches long; 1\/8, 1\/4, 1\/2, 3\/4, and 1 inch long radius points; 3\/8 and 1\/2 inch diameter radius face; 3\/8 and 1\/2 inch long conical tip points; 3\/8 and 1\/2 inch long flat face; 5\/8 inch long needle point; shock absorbing point\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Length\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Width\u003c\/strong\u003e: 5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Height\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 2 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 41111600\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: 21-275-3\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51715871375666,"sku":"21-275-3","price":112.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6f731bb5857964723bd9b904180e56a1.jpg?v=1788519278","url":"https:\/\/voomisupply.com\/products\/spi-21-275-3-ball-point-contact-points-14-pc-agd","provider":"Voomi Supply","version":"1.0","type":"link"}