{"product_id":"kennametal-1541498-hand-tap-8-32-unc-bottoming-hss","title":"Kennametal 1541498 Hand Tap 8-32 Unc Bottoming Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 1541498 is a straight-flute hand tap designed for cutting 8-32 UNC internal threads to a bottoming chamfer in a right-hand direction. Built from high-speed steel with a bright, uncoated finish, it is suited for threading operations in cast iron and non-ferrous metals. The tap features four flutes, a thread limit of H3, and a Class 2B fit, making it appropriate for standard-tolerance threaded fastener applications. With an overall length of 2.13 inches and a thread length of 0.75 inches, it is sized for compact workpieces where thread engagement depth must be maximized near the bottom of a blind hole.\u003c\/p\u003e\n\u003cp\u003eThis tap is used in machine shops, maintenance environments, and light manufacturing where hand-tapping or low-speed machine tapping of 8-32 UNC threads is required. The bottoming chamfer — typically 1 to 2 threads of lead — allows threading to be carried nearly to the bottom of a blind hole, making it a finishing tap used after a plug tap has started the thread. It is appropriate for cast iron components and non-ferrous metal workpieces such as aluminum, brass, and copper alloys. Machinists, tool and die professionals, and maintenance technicians are the primary users.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eBottoming chamfer for threading to the base of blind holes\u003c\/li\u003e\n  \u003cli\u003eHigh-speed steel construction for durability across cast iron and non-ferrous metals\u003c\/li\u003e\n  \u003cli\u003eBright, uncoated finish suitable for use with standard cutting fluids\u003c\/li\u003e\n  \u003cli\u003eH3 thread limit for Class 2B fit tolerance control\u003c\/li\u003e\n  \u003cli\u003e4-flute straight-flute geometry for chip clearance during hand tapping\u003c\/li\u003e\n  \u003cli\u003eRight-hand thread direction, 8-32 UNC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for cutting 8-32 UNC right-hand internal threads in cast iron and non-ferrous metal workpieces. Part of the KENNAMETAL Series 5305 and 5303 tap families.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis tap is installed by machinists or maintenance technicians using a standard tap wrench or low-speed tapping head. Before tapping, ensure the workpiece is securely fixtured and that a correctly sized 8-32 tap drill hole has been prepared. Apply appropriate cutting fluid for the workpiece material to reduce heat and extend tap life. For blind holes, use a plug tap first to establish the thread, then follow with this bottoming tap to extend threads toward the hole base.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 8-32\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer Type\u003c\/strong\u003e: Bottoming\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: H3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Straight\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.13 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.168 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\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: 1541498\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51734546121010,"sku":"1541498","price":25.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/680cb2a210f8d6dac01f18a04eac042a.jpg?v=1788763440","url":"https:\/\/voomisupply.com\/products\/kennametal-1541498-hand-tap-8-32-unc-bottoming-hss","provider":"Voomi Supply","version":"1.0","type":"link"}