{"product_id":"hertel-k010390as25-thread-forming-tap-3-8-16-unc-2b-bottoming","title":"Hertel K010390AS25 Thread Forming Tap 3\/8-16 Unc 2B Bottoming","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL K010390AS25 is a bottoming-style thread forming tap designed to cut 3\/8-16 UNC internal threads to a 2B class of fit. Manufactured from high-speed steel with a titanium nitride (TiN) coating, this tap generates threads by displacing material rather than cutting chips, producing stronger thread forms with better surface finish than cut taps. The TiN coating reduces friction and extends tool life in ferrous and non-ferrous workpiece materials. With an overall length of 2.9375 inches and a thread length of 1.25 inches, it is sized for standard machine tool spindles and tapping heads. Installed by machinists and tool-and-die professionals in production and maintenance environments.\u003c\/p\u003e\n\u003cp\u003eThis tap is suited for blind hole threading applications where chip evacuation is a concern and thread forming is preferred over thread cutting. The bottoming chamfer with 1 to 2 chamfered threads allows the tap to thread close to the bottom of a blind hole, maximizing thread engagement depth. Typical applications include threading tapped holes in steel, aluminum, and other ductile metals in both job shop and production machining settings. Right-hand thread direction is standard for conventional tapping operations.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eBottoming chamfer with 1 to 2 chamfered threads for threading to the bottom of blind holes\u003c\/li\u003e\n  \u003cli\u003eHigh-speed steel construction provides toughness and wear resistance across a range of workpiece materials\u003c\/li\u003e\n  \u003cli\u003eTitanium nitride coating reduces friction and extends tool life\u003c\/li\u003e\n  \u003cli\u003eThread forming design displaces material for stronger threads and no chip generation\u003c\/li\u003e\n  \u003cli\u003eH5 thread limit for precise tolerance control on 2B class of fit threads\u003c\/li\u003e\n  \u003cli\u003eRight-hand thread direction for standard tapping operations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct tooling selection for 3\/8-16 UNC blind hole threading applications requiring a 2B class of fit and bottoming chamfer in standard machine tool or tapping head setups.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use should be performed by qualified machinists following standard tapping procedures. Ensure the workpiece is securely fixtured and the tapping spindle is properly aligned before engaging the tap. Use appropriate cutting or forming fluid for the workpiece material to reduce heat and extend tap life. Inspect the tap for wear or damage before each use and replace if thread form quality degrades.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3\/8-16\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\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\u003eChamfer Type\u003c\/strong\u003e: Bottoming\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfered Threads\u003c\/strong\u003e: 1 to 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Blind Hole Threading\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High-Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Titanium Nitride\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.9375 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 1.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.381 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.286 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1 pound\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: HERTEL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: K010390AS25\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51729282007346,"sku":"K010390AS25","price":50.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/bf0af18398e248b085551d938dc10faa.jpg?v=1788702423","url":"https:\/\/voomisupply.com\/products\/hertel-k010390as25-thread-forming-tap-3-8-16-unc-2b-bottoming","provider":"Voomi Supply","version":"1.0","type":"link"}