{"product_id":"hertel-k008471as-spiral-flute-tap-3-8-24-unf-hss","title":"Hertel K008471AS Spiral Flute Tap 3\/8-24 Unf Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL K008471AS is a spiral flute plug tap designed for threading 3\/8-24 UNF internal threads in a variety of ferrous and non-ferrous workpiece materials. Built from high speed steel (HSS), this tap features a 52-degree helix angle that evacuates chips upward and out of the hole, making it well-suited for through-hole and blind-hole applications where chip management is critical. The plug chamfer provides a gradual thread start across the first few leading threads. Thread limit is H3, and the class of fit is 3B, meeting standard UNF tolerance requirements for precision threaded assemblies.\u003c\/p\u003e\u003cp\u003eThis tap is used in machining, maintenance, repair, and fabrication environments where 3\/8-24 UNF threaded holes are required. The spiral flute geometry performs well in softer steels, aluminum, brass, and plastics. It is appropriate for use in CNC machining centers, drill presses, and manual tapping operations. With an overall length of 2-15\/16 inches, it fits standard tap holders and quick-change chucks used in production and job-shop settings.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e52-degree helix angle promotes upward chip evacuation for cleaner blind and through holes\u003c\/li\u003e\n\u003cli\u003eHigh speed steel construction provides wear resistance across common workpiece materials\u003c\/li\u003e\n\u003cli\u003ePlug chamfer eases thread starting with gradual lead-in over first several threads\u003c\/li\u003e\n\u003cli\u003eH3 thread limit and 3B class of fit for standard UNF precision tolerance\u003c\/li\u003e\n\u003cli\u003eRight-hand flute and right-hand thread configuration for conventional tapping direction\u003c\/li\u003e\n\u003cli\u003eNo coolant-through requirement  -  compatible with flood coolant or tapping fluid applied externally\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for cutting 3\/8-24 UNF internal threads in through-hole and blind-hole applications. Fits standard tap holders, tapping chucks, and collet systems sized for 3\/8-inch shank taps.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use should be performed by a qualified machinist or maintenance technician familiar with thread-cutting operations. Always use a recommended cutting fluid or tapping compound appropriate to the workpiece material to extend tap life and improve thread quality. Secure the workpiece firmly before tapping and ensure the tap is aligned perpendicular to the surface to prevent tap breakage. Never reverse the tap under power without confirming the machine or holder is set for reverse extraction.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3\/8-24\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer Type\u003c\/strong\u003e: Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass of Fit\u003c\/strong\u003e: 3B\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\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 52 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2-15\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High Speed Steel\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: 0.87 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: K008471AS\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51743192744242,"sku":"K008471AS","price":44.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/41e822ea2914d3cc55a703a4723ada33.jpg?v=1788843794","url":"https:\/\/voomisupply.com\/products\/hertel-k008471as-spiral-flute-tap-3-8-24-unf-hss","provider":"Voomi Supply","version":"1.0","type":"link"}