{"product_id":"osg-1211000-spiral-point-tap-3-48-unc-2-flute-hss","title":"Osg 1211000 Spiral Point Tap 3-48 Unc 2 Flute Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 1211000 is a spiral point tap designed for threading 3-48 UNC holes in a wide range of metals. The spiral point geometry pushes chips forward ahead of the cutting zone, making it well suited for through-hole tapping where chip evacuation is critical. Ground from high-speed steel (HSS) with a bright finish, it carries an H3 thread limit for consistent tolerance control. At 1.813 inches overall length with a 0.141-inch shank diameter, this is a compact tap sized for small-fastener work. It is installed and operated by machinists, tool and die makers, and maintenance technicians.\u003c\/p\u003e\u003cp\u003eThis tap is intended for through-hole tapping applications across a broad spectrum of workpiece materials including aluminum, cast aluminum, cast iron, low-carbon steel, medium-carbon steel, high-carbon steel, and hardened steel. The plug chamfer style provides a gradual lead-in, distributing cutting load across several threads at the start of the cut. With 2 flutes and right-hand thread direction, it is compatible with standard CNC tapping cycles and hand-tapping equipment. Series 105 identifies the OSG product family for this geometry and size.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSpiral point geometry pushes chips forward for clean through-hole tapping\u003c\/li\u003e\n\u003cli\u003eH3 thread limit provides consistent tolerance for 3-48 UNC threads\u003c\/li\u003e\n\u003cli\u003eHigh-speed steel construction supports tapping in ferrous and non-ferrous materials\u003c\/li\u003e\n\u003cli\u003ePlug chamfer distributes cutting load gradually at thread entry\u003c\/li\u003e\n\u003cli\u003eBright finish with no coolant-through requirement simplifies setup\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, 2-flute design compatible with standard tapping equipment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for through-hole tapping of 3-48 UNC threads in aluminum, cast aluminum, cast iron, low-carbon steel, medium-carbon steel, high-carbon steel, and hardened steel workpieces.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tap is installed by machinists or maintenance technicians using a tap wrench, tapping head, or CNC machine with a synchronized tapping cycle. Ensure the workpiece is securely clamped and the pilot hole diameter is correct for 3-48 UNC before starting. Use appropriate cutting fluid for the workpiece material to extend tool life and improve thread finish. Inspect the tap for wear or chipping before each use, as a damaged tap can strip threads or break in the hole.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3-48\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: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer Type\u003c\/strong\u003e: Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High-Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Bright\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.813 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.496 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.141 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: 105\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.015 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: 1211000\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51743318278450,"sku":"1211000","price":33.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9a9ea480bdb54b910baba0145e90a327.jpg?v=1788845555","url":"https:\/\/voomisupply.com\/products\/osg-1211000-spiral-point-tap-3-48-unc-2-flute-hss","provider":"Voomi Supply","version":"1.0","type":"link"}