{"product_id":"guhring-9039170028450-spiral-point-tap-4-48-unf-tin-hss-e","title":"Guhring 9039170028450 Spiral Point Tap 4-48 Unf Tin Hss-e","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe GUHRING 9039170028450 is a spiral point tap designed for right-hand through-hole threading in 4-48 UNF applications. Built from HSS-E cobalt high-speed steel and finished with a TiN coating, this tap is engineered for cutting threads in stainless steel and other difficult-to-machine materials. It features a plug chamfer with 3 flutes and a 2B class of fit, providing accurate thread form in production and repair threading operations. With an overall length of 1.882 inches and a thread length of 0.433 inches, it fits standard tap holders for small-diameter work. Machinists and maintenance technicians use this tap where thread quality and tool life in hard materials are the primary concern.\u003c\/p\u003e\n\u003cp\u003eThis tap is suited for through-hole threading in ferrous and stainless steel workpieces at the 4-48 UNF thread standard. The spiral point geometry pushes chips forward ahead of the cutting zone, making it effective in through-hole applications where chip evacuation is critical. It is used in precision machining, aerospace component work, and general metalworking where fine-thread 4-48 UNF fastener holes are required. The TiN coating extends tool life and reduces friction during the cutting cycle. Coolant-through is not supported, so conventional flood or mist coolant delivery applies.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSpiral point geometry pushes chips forward for reliable through-hole threading\u003c\/li\u003e\n  \u003cli\u003eHSS-E cobalt base material rated for threading stainless steel\u003c\/li\u003e\n  \u003cli\u003eTiN coating reduces friction and extends cutting tool life\u003c\/li\u003e\n  \u003cli\u003ePlug chamfer provides gradual thread engagement at the start of the cut\u003c\/li\u003e\n  \u003cli\u003e2B class of fit for standard UNF tolerance threading\u003c\/li\u003e\n  \u003cli\u003eH2\/H3 thread limit for consistent thread form across production runs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for through-hole threading of 4-48 UNF right-hand threads in stainless steel and similar materials. Fits standard tap holders and chucks sized for a 0.141 inch shank diameter. Series 3917 by GUHRING.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis tap is installed by machinists or tool-and-die technicians using a standard tap holder, tapping chuck, or CNC rigid tapping setup. Ensure the workpiece is securely fixtured and the spindle is aligned to the hole axis before beginning the threading cycle. Use appropriate cutting fluid or mist coolant for stainless steel to prevent work hardening and tap breakage. Inspect the tap for wear or chip buildup between uses, particularly when threading abrasive or gummy alloys.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 4-48\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 48\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\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: H2\/H3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer Style\u003c\/strong\u003e: Plug\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStyle\u003c\/strong\u003e: Spiral Point\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Through-Hole Threading\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: HSS-E Cobalt\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Stainless Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.882 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.433 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.141 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNeck Length\u003c\/strong\u003e: 0.276 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Pitch\u003c\/strong\u003e: 0.0208 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: 3917\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 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: GUHRING\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 9039170028450\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51731070386482,"sku":"9039170028450","price":42.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a6870fc4ec23dbea689157ad524fa184_3ec5b160-f8fc-4aab-a274-453d67527590.jpg?v=1788726574","url":"https:\/\/voomisupply.com\/products\/guhring-9039170028450-spiral-point-tap-4-48-unf-tin-hss-e","provider":"Voomi Supply","version":"1.0","type":"link"}