{"product_id":"osg-1602907-straight-flute-tap-1-2-13-unc-plug-2b-hss","title":"Osg 1602907 Straight Flute Tap 1\/2-13 Unc Plug 2B Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 1602907 is a straight flute tap designed for cutting 1\/2-13 UNC internal threads in a right-hand direction. Built from high-speed steel with a nitride and oxide coating, this tap delivers consistent thread form and extended tool life in production and maintenance applications. The plug chamfer style distributes cutting load across the first several threads, making it well suited for through-hole tapping. With a 2B class of fit and H5 thread limit, it produces threads that meet standard tolerance requirements for most fastener assemblies. Machinists, maintenance technicians, and tool-and-die professionals use this tap on manual or CNC equipment.\u003c\/p\u003e\n\u003cp\u003eThe OSG 1602907 is rated for use in aluminum and cast iron, two materials that respond well to straight flute geometry. The straight flute design provides good chip clearance in short-chipping materials and offers rigidity for accurate thread production. With an overall length of 3-3\/8 inches and a thread length of 1-21\/32 inches, this tap fits standard tap holders and floating holders used in vertical machining centers, drill presses, and tapping heads. It is sold individually and suits both job-shop and light-production environments.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1\/2-13 UNC right-hand thread form with 2B class of fit and H5 thread limit\u003c\/li\u003e\n  \u003cli\u003e4 straight flutes for rigidity and chip control in short-chipping materials\u003c\/li\u003e\n  \u003cli\u003ePlug chamfer distributes cutting load across the lead threads for controlled entry\u003c\/li\u003e\n  \u003cli\u003eHigh-speed steel construction with nitride and oxide coating for wear and corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eRated for aluminum and cast iron material applications\u003c\/li\u003e\n  \u003cli\u003eNo coolant-through requirement  -  compatible with flood or manual lubrication\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-use tap for standard 1\/2-13 UNC through-hole applications in aluminum and cast iron workpieces. Part of the OSG Series 101C straight flute tap line.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eA licensed machinist or qualified tooling technician should install this tap in the appropriate holder and verify spindle alignment before threading operations begin. Use the correct cutting fluid or tapping compound for the workpiece material  -  sulfurized oil for cast iron and a water-soluble coolant or dedicated aluminum tapping fluid for aluminum. Do not exceed the recommended feed rate for the thread pitch, and back the tap out periodically to clear chips if tapping blind holes. Inspect the tap for wear or chipping after high-volume runs.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/2-13 UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 13\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: H5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer Type\u003c\/strong\u003e: Plug\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3-3\/8 inches (3.374 inches decimal)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 1-21\/32 inches (1.177 inches decimal)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.367 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 0.4375 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.275 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNeck Length\u003c\/strong\u003e: 1.811 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\u003c\/strong\u003e: Nitride and Oxide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Aluminum, Cast Iron\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: 101C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.11 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: 1602907\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51743893618994,"sku":"1602907","price":48.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/326d7ab8b02d8071a42bd324ef4f1ff7_a9fa4c58-3ff3-421c-9e03-7fa0630b0da8.jpg?v=1788850981","url":"https:\/\/voomisupply.com\/products\/osg-1602907-straight-flute-tap-1-2-13-unc-plug-2b-hss","provider":"Voomi Supply","version":"1.0","type":"link"}