{"product_id":"osg-2912808-spiral-flute-tap-8-32-unc-ticn-vanadium-hss","title":"Osg 2912808 Spiral Flute Tap 8-32 Unc Ticn Vanadium Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 2912808 is a spiral flute tap designed for cutting 8-32 UNC internal threads in a wide range of metals. Built from vanadium high-speed steel with a titanium carbonitride (TiCN) coating, it delivers extended tool life and reduced friction during tapping operations. The modified bottoming chamfer allows threading close to the bottom of a blind hole, making it a practical choice when thread depth is critical. With a 45-degree helix angle and right-hand flute direction, chips are efficiently evacuated upward out of the hole. This tap is a standard tool for machinists, maintenance technicians, and tool-and-die professionals working on production or repair applications.\u003c\/p\u003e\n\u003cp\u003eThe OSG 2912808 is suited for tapping alloy steel, carbon steel, cast iron, stainless steel, die steel, and hardened steel workpieces. Its modified bottoming chamfer design is particularly useful in blind-hole applications where maximum thread engagement is required near the bottom of the bore. The 2B class of fit produces threads within standard tolerance for most general-purpose fastener applications. This tap fits into standard tapping chucks and tap holders compatible with the shank diameter and square drive dimensions of the Series 290 design.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e8-32 UNC thread form, right-hand, 32 threads per inch\u003c\/li\u003e\n  \u003cli\u003eModified bottoming chamfer for near-bottom blind-hole threading\u003c\/li\u003e\n  \u003cli\u003eTiCN coating increases surface hardness and reduces built-up edge on difficult materials\u003c\/li\u003e\n  \u003cli\u003e45-degree right-hand spiral flute promotes upward chip evacuation\u003c\/li\u003e\n  \u003cli\u003eVanadium high-speed steel construction for wear resistance across a broad material range\u003c\/li\u003e\n  \u003cli\u003eH3 thread limit for 2B class of fit tolerance control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eCompatible with alloy steel, carbon steel, cast iron, stainless steel, die steel, and hardened steel. Designed as an OEM-style production tap for standard 8-32 UNC blind-hole and through-hole tapping operations in manual and CNC tapping setups.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists or maintenance technicians using a tap wrench, tapping head, or CNC rigid tap cycle. Ensure the workpiece is securely fixtured and the pilot hole diameter matches the recommended tap drill size for 8-32 UNC before starting. Apply appropriate cutting fluid for the workpiece material to extend tap life and improve thread finish. Do not force a tap that has stopped turning  -  back off and clear chips before continuing.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 8-32 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: 32\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Style\u003c\/strong\u003e: Spiral\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\u003eChamfer\u003c\/strong\u003e: Modified Bottoming\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: H3\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: TiCN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Alloy Steel, Carbon Steel, Cast Iron, Stainless Steel, Die Steel, Hardened Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.125 inches (3.156 inches decimal)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.251 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.323 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNeck Length\u003c\/strong\u003e: 1.713 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.131 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: 290\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.015 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: 2912808\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51739485339954,"sku":"2912808","price":52.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5fbc08e2ee660f43b38f63a090bf9106.jpg?v=1788815122","url":"https:\/\/voomisupply.com\/products\/osg-2912808-spiral-flute-tap-8-32-unc-ticn-vanadium-hss","provider":"Voomi Supply","version":"1.0","type":"link"}