{"product_id":"kennametal-5416853-spiral-point-tap-1-4-20-unc-hss-e","title":"Kennametal 5416853 Spiral Point Tap 1\/4-20 Unc Hss-e","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 5416853 is a spiral point tap designed for through-hole threading in 1\/4-20 UNC applications. It features a 3-flute geometry with a plug chamfer that pushes chips ahead of the cutting edge, keeping the flutes clear during production runs. Built from High-Speed Steel-E (HSS-E), the tap carries a multilayer TiN, CrC, and C coating for improved wear resistance and lubricity. The H3 thread limit and 3B class of fit make it suitable for standard tolerance internal threads. Overall length is 2.5 inches, with a thread length of 0.63 inches. Machinists and tool-and-die technicians use this tap in manual, CNC, and tapping machine setups.\u003c\/p\u003e\n\u003cp\u003eThis tap is rated for through-hole threading in stainless steel and non-ferrous metals, making it a solid choice for shops working with 304 or 316 stainless, aluminum, brass, and similar materials. The spiral point style is best suited for through-holes where chips can exit forward without packing. It is not designed for blind-hole applications. The T820 series designation places it within Kennametal's line of precision-ground HSS-E taps intended for consistent thread quality in medium to high production environments.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSpiral point geometry pushes chips forward, ideal for through-hole threading\u003c\/li\u003e\n  \u003cli\u003eHSS-E base material provides toughness in stainless steel and non-ferrous applications\u003c\/li\u003e\n  \u003cli\u003eMultilayer TiN, CrC, and C coating reduces friction and extends tool life\u003c\/li\u003e\n  \u003cli\u003eH3 thread limit with 3B class of fit for standard tolerance internal threads\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut, no coolant-through requirement, non-interrupted thread profile\u003c\/li\u003e\n  \u003cli\u003ePlug chamfer for general-purpose through-hole starting and threading\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for through-hole threading operations in stainless steel and non-ferrous metals. Compatible with manual tapping handles, CNC machining centers, and dedicated tapping machines set up for 1\/4-20 UNC right-hand threading.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis tap is installed by machinists and CNC operators. Ensure the workpiece is securely fixtured and the spindle or tap holder is properly aligned before engaging the cut. Apply appropriate cutting fluid for the workpiece material, particularly when threading stainless steel, to reduce heat buildup and galling. Inspect the tap for wear or chipping before each use and replace if thread 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: 1\/4-20 UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStyle\u003c\/strong\u003e: Spiral Point\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer\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\u003eApplication\u003c\/strong\u003e: Through-Hole Threading\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Stainless Steel, Non-Ferrous Metal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High-Speed Steel-E (HSS-E)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: KSMN34\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiN, CrC, C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.63 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.255 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNeck Length\u003c\/strong\u003e: 0.37 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Pitch\u003c\/strong\u003e: 0.05 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 20\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: T820\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 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: KENNAMETAL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 5416853\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51736925208882,"sku":"5416853","price":56.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/861d04fdd0d65732ca5807df8952d8d4_a2f7f873-648b-4405-96e4-9928563b719c.jpg?v=1788781999","url":"https:\/\/voomisupply.com\/products\/kennametal-5416853-spiral-point-tap-1-4-20-unc-hss-e","provider":"Voomi Supply","version":"1.0","type":"link"}