{"product_id":"seco-10001184-spiral-point-tap-1-4-28-unjf-3-flute-alcrn","title":"Seco 10001184 Spiral Point Tap 1\/4-28 Unjf 3 Flute Alcrn","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SECO 10001184 is a spiral point tap designed for through-hole threading in demanding materials including stainless steel, non-ferrous metals, superalloys, titanium, and hardened steel. It is ground from high-speed steel with powder metallurgy enhancement (HSS-E-PM) and finished with an aluminum chromium nitride (AlCrN) coating for improved heat resistance and tool life. The tap cuts a 1\/4-28 UNJF thread to a 3B class of fit with a plug chamfer for gradual thread engagement. Overall length is 3.256 inches (80 millimeters) and thread length is 0.591 inches (15 millimeters). Installation is performed by machinists and maintenance technicians in CNC or manual tapping operations.\u003c\/p\u003e\n\u003cp\u003eThis tap is suited for production and maintenance threading applications where tight tolerances and thread form integrity are required. The UNJF (Unified National Miniature Fine) thread standard is specified in aerospace and high-strength fastener applications where root radius geometry reduces stress concentration. The right-hand spiral point style pushes chips ahead of the tap through the hole, making it appropriate for through-hole applications rather than blind holes. The 3-flute configuration balances chip clearance and tool body strength at this diameter.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eHSS-E-PM construction provides consistent grain structure and edge toughness for difficult materials\u003c\/li\u003e\n  \u003cli\u003eAlCrN coating reduces heat buildup and extends tool life in stainless steel, titanium, and superalloys\u003c\/li\u003e\n  \u003cli\u003ePlug chamfer with 3 to 5 thread lead for gradual thread engagement and reduced starting torque\u003c\/li\u003e\n  \u003cli\u003eSpiral point geometry pushes chips forward through the hole, ideal for through-hole threading\u003c\/li\u003e\n  \u003cli\u003e3B class of fit produces threads within standard tolerance for general aerospace and mechanical assemblies\u003c\/li\u003e\n  \u003cli\u003eRight-hand thread direction, no coolant-through, non-oversize, uninterrupted thread form\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for through-hole tapping of 1\/4-28 UNJF threads in stainless steel, non-ferrous metals, superalloys, titanium, and hardened steel. Belongs to SECO MTP series spiral point taps.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists using CNC machining centers, drill presses, or manual tapping equipment. Ensure the workpiece is rigidly fixtured and the tap is properly aligned before engagement to avoid tap breakage. This tap does not have coolant-through capability, so flood or mist coolant should be applied externally when threading heat-sensitive materials such as stainless steel or titanium. Follow applicable shop safety procedures and manufacturer feed rate recommendations for the specific workpiece material.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-28\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNJF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 28\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClass of Fit\u003c\/strong\u003e: 3B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer\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: High-Speed Steel with Powder Metallurgy (HSS-E-PM)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: AlCrN (Aluminum Chromium Nitride)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Stainless Steel, Non-Ferrous Metal, Superalloys and Titanium, Hardened Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.256 inches (80 millimeters)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.591 inches (15 millimeters)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.276 inches (7 millimeters)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNeck Length\u003c\/strong\u003e: 0.394 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Pitch\u003c\/strong\u003e: 0.0357 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOversize\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: MTP\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.11 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: SECO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 10001184\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SECO TOOLS","offers":[{"title":"Default Title","offer_id":51562732519730,"sku":"10001184","price":84.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5c864491d6d692a91f026b3804b832f9.jpg?v=1786483418","url":"https:\/\/voomisupply.com\/products\/seco-10001184-spiral-point-tap-1-4-28-unjf-3-flute-alcrn","provider":"Voomi Supply","version":"1.0","type":"link"}