{"product_id":"kennametal-1542598-spiral-point-tap-3-8-16-unc-hss","title":"Kennametal 1542598 Spiral Point Tap 3\/8-16 Unc Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 1542598 is a spiral point tap designed for threading 3\/8-16 UNC holes in production and maintenance machining applications. Made from high speed steel (HSS) with a bright uncoated finish, this tap drives chips forward ahead of the cut, making it well suited for through-hole threading where chip evacuation is critical. The plug chamfer distributes cutting load across the first several threads for controlled entry. It carries a Class 3B thread fit and an H3 thread limit, delivering tight, consistent thread tolerance. Overall length is 2.9400 inches with a 1.2500-inch thread length.\u003c\/p\u003e\u003cp\u003eThis tap is intended for use in cast iron, ductile iron, and non-ferrous metals. The spiral point geometry works best in through-hole applications where chips can be pushed clear of the cutting zone. It is well suited for CNC machining centers, drill presses, and manual tapping operations where coolant-through tooling is not required. The right-hand thread direction is standard for conventional fastener threads. It belongs to Kennametal Series 5301, a fractional-inch line covering common thread sizes for general metalworking shops and production environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSpiral point geometry pushes chips forward for efficient through-hole threading\u003c\/li\u003e\n\u003cli\u003eHigh speed steel construction provides toughness across a range of workpiece materials\u003c\/li\u003e\n\u003cli\u003eBright uncoated finish suits cast iron, ductile iron, and non-ferrous metal applications\u003c\/li\u003e\n\u003cli\u003ePlug chamfer distributes cutting forces for smooth thread entry\u003c\/li\u003e\n\u003cli\u003eH3 thread limit and Class 3B fit ensure consistent tolerance control\u003c\/li\u003e\n\u003cli\u003eNo coolant-through requirement simplifies setup on standard equipment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for threading 3\/8-16 UNC through holes in cast iron, ductile iron, and non-ferrous metals. Fits standard 3\/8-inch tap holders and collet chucks accepting a 0.3810-inch shank diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eA licensed machinist or qualified tooling technician should secure the workpiece fully before tapping operations begin. Always confirm spindle speed and feed rate are appropriate for the workpiece material before engaging the tap. Use an appropriate tapping fluid or cutting oil for the material being threaded to extend tool life and improve thread finish. Inspect the tap for wear or chipping before each use and remove it from service if thread tolerance cannot be maintained.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3\/8-16\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer Type\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\u003eMaterial\u003c\/strong\u003e: High Speed Steel (HSS)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.9400 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 1.2500 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.3810 inches\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: 1542598\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51728315351346,"sku":"1542598","price":32.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/79976c76535d701d326c70804691c1f8.jpg?v=1788690422","url":"https:\/\/voomisupply.com\/products\/kennametal-1542598-spiral-point-tap-3-8-16-unc-hss","provider":"Voomi Supply","version":"1.0","type":"link"}