{"product_id":"guhring-9039610079380-spiral-point-tap-5-16-18-unc","title":"Guhring 9039610079380 Spiral Point Tap 5\/16-18 Unc","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe GUHRING 9039610079380 is a spiral point plug tap designed for through-hole threading in a wide range of metalworking applications. Built from cobalt high-speed steel and finished with a MolyGlide coating, this tap delivers improved lubricity and extended tool life compared to standard HSS taps. It cuts a 5\/16-18 UNC right-hand thread to a 2B class of fit with H4\/H5 thread limits. The plug chamfer eases entry and distributes cutting load across the first several threads. At 2.72 inches overall length, it fits standard tap holders and is well suited for CNC machining centers, drill presses, and manual tapping operations. Machinists and tool-and-die technicians are the primary installers.\u003c\/p\u003e\u003cp\u003eThis tap is rated for through-hole threading without coolant-through capability, making it appropriate for benchtop and CNC applications where flood coolant or cutting oil is applied externally. It is designed for use in aluminum, gray cast iron, malleable iron, spheroidal iron, non-ferrous metals, and steel, giving it broad applicability across job shop and production environments. The 3-flute spiral point geometry pushes chips forward ahead of the tap, keeping flutes clear during through-hole passes.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCobalt construction for elevated hardness and heat resistance compared to standard HSS\u003c\/li\u003e\n\u003cli\u003eMolyGlide finish reduces friction and improves chip evacuation\u003c\/li\u003e\n\u003cli\u003eSpiral point geometry pushes chips forward, ideal for through-hole threading\u003c\/li\u003e\n\u003cli\u003ePlug chamfer for controlled thread entry and distributed cutting load\u003c\/li\u003e\n\u003cli\u003eH4\/H5 thread limits hold 2B class of fit tolerances consistently\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, 5\/16-18 UNC thread form\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eRated for threading aluminum, gray cast iron, malleable iron, non-ferrous metals, spheroidal iron, and steel. Designed for through-hole threading applications using standard 5\/16-18 UNC thread form.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstall in a standard tap holder or floating tap chuck sized for a 0.318-inch shank diameter. Apply cutting oil or appropriate tapping fluid externally before and during the operation. Secure the workpiece firmly before tapping to prevent movement that could break the tap. Follow applicable shop safety practices and machinery guarding requirements when tapping on powered equipment.\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\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: 2B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H4\/H5\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: Cobalt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: MolyGlide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Through-Hole Threading\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.72 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\u003eWeight\u003c\/strong\u003e: 0.024 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 3961\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Aluminum, Gray Cast Iron, Malleable Iron, Non-Ferrous Metal, Spheroidal Iron, Steel\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: GUHRING\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 9039610079380\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51787390484786,"sku":"9039610079380","price":46.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/972f34027cc84a98c0e8860ed65c0bb9_3e932af0-3aa3-49bf-b6ec-2e2db9bc0c2a.jpg?v=1789214003","url":"https:\/\/voomisupply.com\/products\/guhring-9039610079380-spiral-point-tap-5-16-18-unc","provider":"Voomi Supply","version":"1.0","type":"link"}