{"product_id":"osg-1294500-spiral-point-extension-tap-10-24-unc-hss","title":"Osg 1294500 Spiral Point Extension Tap 10-24 Unc Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 1294500 is a spiral point extension tap designed for threading 10-24 UNC holes in production and maintenance applications. Built from high speed steel (HSS) with a bright\/uncoated finish, it features a plug chamfer entry and a right-hand flute direction suited for through-hole threading. The extended 4-inch overall length (OAL) provides reach in applications where a standard-length tap cannot access the workpiece. With a 2-flute design and H3 thread limit, the 1294500 produces 2B and 3B class of fit threads with reliable dimensional consistency across a range of materials.\u003c\/p\u003e\n\u003cp\u003eThis tap is appropriate for threading operations in aluminum, carbon steel, cast iron, and hardened steel workpieces. The spiral point design pushes chips forward ahead of the cutting action, making it well-suited for through-hole applications on CNC machining centers, drill presses, and manual tapping setups. The reduced shank and extended neck length of 0.874 inches allow it to reach into recessed or deep-pocket features that standard taps cannot clear. It is commonly used in machine shops, maintenance facilities, and production environments where extended reach is a job requirement.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSpiral point geometry pushes chips forward, ideal for through-hole threading\u003c\/li\u003e\n  \u003cli\u003e4-inch OAL provides extended reach for recessed or deep-pocket workpieces\u003c\/li\u003e\n  \u003cli\u003eH3 thread limit for accurate 2B and 3B class of fit thread production\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel construction compatible with aluminum, carbon steel, cast iron, and hardened steel\u003c\/li\u003e\n  \u003cli\u003ePlug chamfer entry for progressive thread engagement\u003c\/li\u003e\n  \u003cli\u003eReduced shank design with 0.874-inch neck length for clearance in tight setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for through-hole tapping in materials including aluminum, carbon steel, cast iron, and hardened steel. Produces 10-24 UNC threads to 2B and 3B class of fit specifications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists and tool and die tradespeople using standard tap holders, floating tap chucks, or rigid tapping attachments. Ensure the workpiece is securely fixtured and the pilot hole is drilled to the correct tap drill diameter for a 10-24 thread before starting. Apply appropriate cutting fluid for the workpiece material to extend tool life and improve thread quality. Do not exceed the rated capacity of the tapping attachment or reverse the tap under load without confirming synchronization.\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\u003eThread Limit\u003c\/strong\u003e: H3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClass of Fit\u003c\/strong\u003e: 2B, 3B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.875 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNeck Length\u003c\/strong\u003e: 0.874 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.194 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\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTap Type\u003c\/strong\u003e: Spiral Point\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer\u003c\/strong\u003e: Plug\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReduced Shank\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Aluminum, Carbon Steel, Cast Iron, Hardened Steel\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: 1294500\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51732378222898,"sku":"1294500","price":75.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/242fff531edc8931a17e947e41f7dcbd.jpg?v=1788742235","url":"https:\/\/voomisupply.com\/products\/osg-1294500-spiral-point-extension-tap-10-24-unc-hss","provider":"Voomi Supply","version":"1.0","type":"link"}