{"product_id":"osg-1732101-spiral-flute-tap-5-40-unc-vanadium-hss","title":"Osg 1732101 Spiral Flute Tap 5-40 Unc Vanadium Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 1732101 is a spiral flute tap designed for cutting 5-40 UNC internal threads in a range of ferrous materials. Built from vanadium high-speed steel with a steam oxide coating, it delivers heat resistance and lubricity suited to tapping stainless steel, high-carbon steel, medium-carbon steel, and low-carbon steel. The modified bottoming chamfer allows threading closer to the bottom of blind holes than a standard plug or taper tap. With a 45-degree helix angle and 3 right-hand flutes, the spiral geometry evacuates chips up and out of the hole, reducing the risk of chip packing in confined tap depths. Licensed machinists and tool-and-die professionals are the primary installers of this tap.\u003c\/p\u003e\u003cp\u003eThis tap fits production and maintenance applications where fine, small-diameter threads are required in harder materials. The 5-40 UNC designation is common in precision instrument work, electronics chassis, and small mechanical assemblies. The H2 thread limit provides a controlled tolerance for use with 2B and 3B class of fit threaded fasteners, making it appropriate for both general-purpose and close-tolerance work. Series 303 identifies this as part of OSG standard catalog tooling.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eModified bottoming chamfer for threading near the bottom of blind holes\u003c\/li\u003e\n\u003cli\u003e45-degree helix angle promotes upward chip evacuation in through and blind hole applications\u003c\/li\u003e\n\u003cli\u003eVanadium high-speed steel construction for extended tool life in ferrous materials\u003c\/li\u003e\n\u003cli\u003eSteam oxide coating reduces friction and provides corrosion resistance during storage and use\u003c\/li\u003e\n\u003cli\u003eH2 thread limit suits 2B and 3B class of fit applications\u003c\/li\u003e\n\u003cli\u003eRight-hand flute and right-hand thread direction for standard tapping operations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for cutting 5-40 UNC threads in stainless steel, high-carbon steel, medium-carbon steel, and low-carbon steel workpieces. Fits standard tap holders and tapping chucks accepting a 0.141-inch shank diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tap is installed and used by machinists, tool-and-die makers, and maintenance technicians operating drill presses, CNC machining centers, or hand-tapping equipment. Ensure the tap is properly aligned with the pilot hole before engagement to avoid tap breakage in small-diameter work. Use an appropriate cutting fluid or tapping compound for the workpiece material. Never reverse a spiral flute tap under load without relieving chip pressure, as breakage risk is elevated at this diameter.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5-40\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 Type\u003c\/strong\u003e: Modified Bottoming\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass of Fit\u003c\/strong\u003e: 2B\/3B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 45 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\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\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Steam Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.938 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.210 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\u003eNeck Length\u003c\/strong\u003e: 0.626 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 0.188 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.110 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 40\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: 303\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Stainless Steel, High-Carbon Steel, Low-Carbon Steel, Medium-Carbon 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: OSG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1732101\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51739872657714,"sku":"1732101","price":56.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/686021b6f522cfdc5220c7531ba0251f.jpg?v=1788819891","url":"https:\/\/voomisupply.com\/products\/osg-1732101-spiral-flute-tap-5-40-unc-vanadium-hss","provider":"Voomi Supply","version":"1.0","type":"link"}