{"product_id":"kennametal-1540369-spiral-point-tap-3-48-unc-hss","title":"Kennametal 1540369 Spiral Point Tap 3-48 Unc Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 1540369 is a spiral point plug tap designed for cutting internal threads in through-hole applications. Built from high speed steel with a bright uncoated finish, this tap is sized for 3-48 UNC threads and produces right-hand threads with a 2B class of fit. The H2 thread limit provides consistent tolerance control for standard fastener fits. With a 2-flute spiral point geometry, the tap pushes chips forward ahead of the cutting zone, keeping the flutes clear during operation. Overall length is 1.8125 inches with a thread length of 0.5 inches. It is suited for manual or machine tapping in low-volume and production environments.\u003c\/p\u003e\u003cp\u003eThis tap is rated for use in cast iron, ductile iron, and non-ferrous metals, making it a practical choice for general machine shop, maintenance, and repair work. The plug chamfer style — typically 3 to 5 threads of lead — requires a through-hole for proper chip evacuation. It is well matched for tapping operations on CNC machines, drill presses, or tapping arms where axial control is maintained. Series 5301 identifies this as part of a standard HSS tap family from KENNAMETAL, consistent with catalog stock tooling.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSpiral point geometry pushes chips forward, suited for through-hole tapping\u003c\/li\u003e\n\u003cli\u003eHigh speed steel construction for durability across cast iron and non-ferrous materials\u003c\/li\u003e\n\u003cli\u003eH2 thread limit for consistent 2B class of fit tolerancing\u003c\/li\u003e\n\u003cli\u003eBright uncoated finish — no added coating buildup to affect thread tolerance\u003c\/li\u003e\n\u003cli\u003ePlug chamfer provides progressive thread engagement for machine tapping\u003c\/li\u003e\n\u003cli\u003eRight-hand thread direction, 2-flute design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a direct-fit replacement or standard tooling selection for 3-48 UNC through-hole tapping operations in cast iron, ductile iron, and non-ferrous metal workpieces where a 2B class of fit is required.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation of taps should be performed by a qualified machinist following standard shop safety procedures. Secure the workpiece and ensure proper alignment before engaging the tap to avoid breakage. Use appropriate cutting fluid for the workpiece material to extend tool life. Always power down and de-energize any machine tool before changing or setting tooling.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3-48\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\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\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer Style\u003c\/strong\u003e: Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.8125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.5 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\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, Ductile Iron, Non-Ferrous Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasurement Type\u003c\/strong\u003e: Fractional Inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 5301\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: 1540369\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51732461060402,"sku":"1540369","price":37.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/dfbf3f5254bb909d688fe60e1a5e847c.jpg?v=1788743020","url":"https:\/\/voomisupply.com\/products\/kennametal-1540369-spiral-point-tap-3-48-unc-hss","provider":"Voomi Supply","version":"1.0","type":"link"}