{"product_id":"kennametal-1542455-hand-tap-5-16-18-unc-bottoming-hss","title":"Kennametal 1542455 Hand Tap 5\/16-18 Unc Bottoming Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 1542455 is a straight-flute hand tap designed for cutting right-hand internal threads in a bottoming configuration. Built from high-speed steel with a bright uncoated finish, it is engineered for 5\/16-18 UNC threading at a Class 3B fit with an H3 thread limit. The tap measures 2.72 inches overall length with a 1.125-inch thread length and a 0.318-inch shank diameter. With 4 flutes, it produces clean threads in both cast iron and non-ferrous metal applications. Machinists, tool-and-die makers, and maintenance technicians use this tap for hand-threading operations requiring a full-depth thread close to the bottom of a blind hole.\u003c\/p\u003e\u003cp\u003eThis tap is suited for use in blind holes where thread engagement must extend as close to the hole bottom as possible. The bottoming chamfer — typically 1 to 2 threads of lead — allows thread cutting to the lowest practical depth after a spiral-point or plug tap has started the thread. It is appropriate for light industrial, maintenance, repair, and original equipment manufacturing environments working with cast iron and non-ferrous metals. It is part of the Series 5305 and 5303 product lines.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBottoming chamfer for threading close to the base of blind holes\u003c\/li\u003e\n\u003cli\u003eHigh-speed steel construction for durability across cast iron and non-ferrous metal workpieces\u003c\/li\u003e\n\u003cli\u003eBright uncoated finish suitable for use with cutting fluids\u003c\/li\u003e\n\u003cli\u003e4-flute straight-flute design for clean thread formation in through and blind holes\u003c\/li\u003e\n\u003cli\u003eH3 thread limit and Class 3B fit for standard tolerance threading\u003c\/li\u003e\n\u003cli\u003eRight-hand thread direction, no coolant-through requirement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-use hand tap for 5\/16-18 UNC threading applications in Series 5305 and 5303 tooling programs. Compatible material applications include cast iron and non-ferrous metals.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tap is intended for manual hand-tapping operations performed by machinists or maintenance technicians. Secure the workpiece before threading and use an appropriate tapping fluid for the material being threaded. A tap wrench sized for the shank diameter provides the necessary control to avoid tap breakage. When following a plug or spiral-point tap in a blind hole, clear chips between passes to prevent binding.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/16-18\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer Type\u003c\/strong\u003e: Bottoming\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\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.72 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 1.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.318 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High-Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Cast Iron, Non-Ferrous Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 5305, 5303\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241600\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 1542455\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51732330742066,"sku":"1542455","price":29.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/83cc6be9d99e8d3494068f932d23efc8.jpg?v=1788741698","url":"https:\/\/voomisupply.com\/products\/kennametal-1542455-hand-tap-5-16-18-unc-bottoming-hss","provider":"Voomi Supply","version":"1.0","type":"link"}