{"product_id":"osg-3310901-pipe-tap-1-4-18-nptf-5-flute-hss-oxide","title":"Osg 3310901 Pipe Tap 1\/4-18 Nptf 5 Flute Hss Oxide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 3310901 is an interrupted thread pipe tap designed for cutting 1\/4-18 NPTF tapered pipe threads in a wide range of ferrous and non-ferrous materials. Built from high-speed steel with an oxide finish, it features 5 flutes in an interrupted thread pattern that improves chip evacuation and reduces torque during the tapping operation. The overall length is 2.437 inches, with a 1-1\/16 inch thread length and a 0.5625 inch shank diameter. The 0.421 inch square drive end fits standard tap wrenches and machine holders. This tap is suited for production and maintenance tapping applications where NPTF thread form accuracy is required.\u003c\/p\u003e\n\u003cp\u003eThe 3310901 is used in applications requiring a pressure-tight pipe thread connection without the use of a sealant. The NPTF thread form produces a mechanical seal by controlled interference between the crests and roots of mating threads. Typical installation scenarios include tapping pipe thread ports in hydraulic manifolds, pneumatic fittings, fluid system housings, and equipment frames. The interrupted flute geometry makes this tap particularly effective in through-hole and blind-hole applications where chip packing is a concern. Compatible materials include aluminum, cast aluminum, cast iron, low-carbon steel, medium-carbon steel, high-carbon steel, and hardened steel.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eInterrupted thread pattern reduces cutting torque and improves chip clearance\u003c\/li\u003e\n  \u003cli\u003eHigh-speed steel construction provides wear resistance across a broad range of workpiece materials\u003c\/li\u003e\n  \u003cli\u003eOxide finish improves lubricity and corrosion resistance during storage and use\u003c\/li\u003e\n  \u003cli\u003e5 flutes for efficient chip evacuation in ferrous and non-ferrous materials\u003c\/li\u003e\n  \u003cli\u003eNPTF thread form creates a pressure-tight mechanical seal without sealant\u003c\/li\u003e\n  \u003cli\u003e2-1\/2 chamfer length provides gradual thread engagement for controlled cutting action\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned to cut 1\/4-18 NPTF tapered pipe threads per the NPTF standard. Confirmed compatible materials include aluminum, cast aluminum, cast iron, low-carbon steel, medium-carbon steel, high-carbon steel, and hardened steel. Part of OSG Series 108G.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis tap is installed by machinists and maintenance technicians using a standard tap wrench or machine tapping attachment. Always ensure the workpiece is securely clamped and the tap is properly aligned with the pilot hole before engagement to avoid tap breakage. Apply a suitable cutting fluid rated for the workpiece material to extend tool life and maintain thread quality. Follow the tool manufacturer and applicable shop safety guidelines when operating tapping equipment.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-18\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: NPTF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 18\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.437 inches (2-7\/16 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 1-1\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.5625 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.421 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer\u003c\/strong\u003e: 2-1\/2\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: Oxide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Materials\u003c\/strong\u003e: Aluminum, Cast Aluminum, Cast Iron, Low-Carbon Steel, Medium-Carbon Steel, High-Carbon Steel, Hardened Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 108G\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.12 pounds\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: OSG\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 3310901\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51755778244914,"sku":"3310901","price":108.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/66dac350ec1231c35c77e97c4d810e79_9d7a9215-c3cf-47bd-ad09-c0a273053f84.jpg?v=1788959590","url":"https:\/\/voomisupply.com\/products\/osg-3310901-pipe-tap-1-4-18-nptf-5-flute-hss-oxide","provider":"Voomi Supply","version":"1.0","type":"link"}