{"product_id":"osg-1301900503-spiral-flute-tap-10-24-unc-nitride-hss","title":"Osg 1301900503 Spiral Flute Tap 10-24 Unc Nitride Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 1301900503 is a spiral flute tap designed for cutting 10-24 UNC internal threads in a modified bottoming configuration. Built from vanadium high-speed steel with a nitride coating, this tap delivers extended tool life and reduced friction during the tapping cycle. The 50-degree helix angle and three right-hand spiral flutes eject chips upward, making it well suited for blind-hole applications where chip buildup causes thread damage or tap breakage. It holds a 2B class of fit with an H3 thread limit, meeting standard tolerance requirements for most fastener applications. Overall length is 2.5 inches with a 0.875-inch thread length. A licensed machinist or tool-and-die professional installs this tap in a tapping fixture, CNC machine, or hand tap holder.\u003c\/p\u003e\n\u003cp\u003eThis tap is optimized for use in aluminum and similarly machinable non-ferrous materials. The modified bottoming chamfer allows threading closer to the bottom of a blind hole than a standard plug or taper chamfer permits, making it a practical choice for tight-clearance assemblies in light manufacturing, HVAC equipment fabrication, and mechanical sub-assembly work. The nitride surface treatment improves lubricity and resists built-up edge when cutting aluminum. Series 13019 is OSG's catalog designation for this tap family. Package quantity is one tap per unit.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eThree right-hand spiral flutes with a 50-degree helix angle for efficient upward chip ejection in blind holes\u003c\/li\u003e\n  \u003cli\u003eModified bottoming chamfer for threading close to the base of a blind hole\u003c\/li\u003e\n  \u003cli\u003eVanadium high-speed steel construction for wear resistance in production tapping\u003c\/li\u003e\n  \u003cli\u003eNitride coating reduces friction and improves performance in aluminum\u003c\/li\u003e\n  \u003cli\u003e2B class of fit with H3 thread limit meets standard UNC tolerance requirements\u003c\/li\u003e\n  \u003cli\u003eCoolant-through design is not required — standard through-coolant is not supported\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for cutting 10-24 UNC right-hand threads in aluminum and comparable machinable materials; compatible with standard straight-shank tap holders and CNC tapping chucks sized for a 0.255-inch shank diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis tap is installed by a machinist using a tapping fixture, rigid tap holder, or floating tap chuck in a drill press or CNC machining center. Power down and secure the workpiece before tool changes. Use appropriate cutting fluid for the workpiece material to extend tap life and maintain thread quality. Inspect the tap for chipping or wear before each use — a worn or chipped tap produces out-of-tolerance threads and risks breakage in the hole.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 10-24\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 24\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Style\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 50 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer\u003c\/strong\u003e: Modified Bottoming\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClass of Fit\u003c\/strong\u003e: 2B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Vanadium High-Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Nitride\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Aluminum\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.326 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.255 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.152 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 13019\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.023 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: OSG\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1301900503\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51728501309746,"sku":"1301900503","price":45.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f19ed3fcaea49fb877bfa0a5bf4f359e.jpg?v=1788692241","url":"https:\/\/voomisupply.com\/products\/osg-1301900503-spiral-flute-tap-10-24-unc-nitride-hss","provider":"Voomi Supply","version":"1.0","type":"link"}