{"product_id":"osg-1725105-spiral-point-tap-9-16-18-unf-tin-coated-hss","title":"Osg 1725105 Spiral Point Tap 9\/16-18 Unf Tin Coated Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 1725105 is a spiral point plug tap designed for cutting internal threads in through-hole applications. Built from Vanadium High Speed Steel (HSS-E) with a Titanium Nitride (TiN) coating, it delivers extended tool life and improved chip evacuation compared to uncoated taps. It carries a 9\/16-18 UNF thread form, a 3B class of fit, and an H3 thread limit, making it suited for close-tolerance threaded connections in production and maintenance machining environments. With 3 flutes and a plug chamfer, it pushes chips forward through the hole during cutting. Machinists, tool and die workers, and maintenance technicians install this tap in drill presses, CNC machines, and hand tap applications.\u003c\/p\u003e\u003cp\u003eThis tap is applied in through-hole threading operations across a range of ferrous materials including low-carbon steel, medium-carbon steel, hardened steel, and stainless steel. It is part of the OSG Series 300 line and is suited for both production runs and field repair scenarios where a 9\/16-18 UNF thread is required. The right-hand thread direction and plug chamfer make it appropriate for standard through-hole drilling sequences where the tap enters from one side and exits the other. Coolant-through capability is not available on this tap.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eVanadium High Speed Steel (HSS-E) construction for increased wear resistance over standard M2 HSS\u003c\/li\u003e\n\u003cli\u003eTiN coating reduces friction and extends tool life in ferrous materials\u003c\/li\u003e\n\u003cli\u003ePlug chamfer (3-5 thread lead) drives chips forward through the hole for clean through-hole threading\u003c\/li\u003e\n\u003cli\u003eH3 thread limit and 3B class of fit for consistent, close-tolerance thread production\u003c\/li\u003e\n\u003cli\u003e3-flute design balances chip load and thread form quality in a range of steels\u003c\/li\u003e\n\u003cli\u003eRight-hand thread direction, compatible with standard tap holders and power drivers\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for through-hole tapping of 9\/16-18 UNF threads in low-carbon steel, medium-carbon steel, hardened steel, and stainless steel. Compatible with standard tap holders, drill press chucks, and CNC tapping heads that accept a 0.429-inch shank diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tap is installed by machinists and maintenance technicians using a drill press, tapping arm, CNC machining center, or hand tap wrench. Always ensure the pilot hole is drilled to the correct tap drill size for 9\/16-18 UNF before tapping. Apply cutting fluid or tapping compound appropriate for the workpiece material, particularly when tapping stainless steel or hardened steel. Secure the workpiece firmly and align the tap perpendicular to the work surface before beginning the threading operation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 9\/16-18\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNF\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: Vanadium High Speed Steel (HSS-E)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiN (Titanium Nitride)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Hardened Steel, Low-Carbon Steel, Medium-Carbon Steel, Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.594 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 1.27 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.429 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 300\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.165 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: OSG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1725105\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51737567822130,"sku":"1725105","price":86.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d94467d1266d2adb0273599f97262f57.jpg?v=1788790547","url":"https:\/\/voomisupply.com\/products\/osg-1725105-spiral-point-tap-9-16-18-unf-tin-coated-hss","provider":"Voomi Supply","version":"1.0","type":"link"}