{"product_id":"osg-1242400-spiral-point-tap-1-2-13-unc-3-flute-plug-hss","title":"Osg 1242400 Spiral Point Tap 1\/2-13 Unc 3 Flute Plug Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 1242400 is a spiral point tap designed for threading 1\/2-13 UNC through-holes in a wide range of ferrous and non-ferrous materials. Manufactured from high-speed steel with a bright finish, it features a plug chamfer and a right-hand thread direction, making it suited for conventional tapping operations on CNC machines and manual tap handles alike. The H5 thread limit provides consistent sizing within the 2B class of fit tolerance. With three flutes and a spiral point geometry, the tap pushes chips forward ahead of the cut rather than backing them into the flute, which reduces chip packing in through-hole applications.\u003c\/p\u003e\n\u003cp\u003eThis tap is intended for production and job-shop environments where through-hole 1\/2-13 UNC threads are required. Rated material applications include aluminum, cast aluminum, cast iron, low-carbon steel, medium-carbon steel, high-carbon steel, and hardened steel, making it a versatile choice for general machining work in automotive, fabrication, and maintenance repair operations. The plug chamfer style is the standard starting point for most through-hole tapping where a bottoming or taper style is not specified.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSpiral point geometry pushes chips forward, reducing chip packing in through-hole applications\u003c\/li\u003e\n  \u003cli\u003e1\/2-13 UNC thread form with H5 thread limit and 2B class of fit for standard tolerance threading\u003c\/li\u003e\n  \u003cli\u003eHigh-speed steel construction handles a broad range of workpiece materials including hardened steel\u003c\/li\u003e\n  \u003cli\u003ePlug chamfer provides reliable thread lead-in for through-hole tapping\u003c\/li\u003e\n  \u003cli\u003eBright finish with no coolant-through requirement, compatible with flood or manual lubrication\u003c\/li\u003e\n  \u003cli\u003eRight-hand thread direction for standard tapping setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard replacement or production spiral point tap for 1\/2-13 UNC through-hole threading in aluminum, cast aluminum, cast iron, low-carbon steel, medium-carbon steel, high-carbon steel, and hardened steel workpieces.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall in a tap holder, tapping head, or rigid CNC tapping cycle appropriate for the machine setup. Ensure the spindle is fully stopped and the workpiece is securely fixtured before tool changes. Apply cutting fluid or tapping compound appropriate for the workpiece material to extend tool life and improve thread finish. Follow OSHA machine guarding and lockout\/tagout procedures when setting up tapping operations on powered equipment.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/2-13\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer Style\u003c\/strong\u003e: Plug\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: H5\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: High-Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Bright\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.375 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.941 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.367 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: 105\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.116 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: 1242400\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51729694753074,"sku":"1242400","price":48.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0341b06d296d7931567de42034d4484d.jpg?v=1788707929","url":"https:\/\/voomisupply.com\/products\/osg-1242400-spiral-point-tap-1-2-13-unc-3-flute-plug-hss","provider":"Voomi Supply","version":"1.0","type":"link"}