{"product_id":"osg-2907808-spiral-flute-tap-8-32-unc-ticn-vanadium-hss","title":"Osg 2907808 Spiral Flute Tap 8-32 Unc Ticn Vanadium Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 2907808 is a spiral flute tap designed for cutting 8-32 UNC internal threads in a wide range of ferrous materials. It features a 45-degree helix angle that promotes efficient chip evacuation up and out of the hole, reducing the risk of chip packing in blind-hole applications. The tap is ground from vanadium high-speed steel and finished with a titanium carbonitride (TiCN) coating that increases surface hardness and wear resistance. With a modified bottoming chamfer, the 2907808 threads close to the bottom of a blind bore. Overall length is 2.5 inches with a shank diameter of 0.255 inches. It carries an H2 thread limit and a 3B class of fit. Licensed machinists and trade professionals use this tap with standard tapping equipment.\u003c\/p\u003e\n\u003cp\u003eThe 2907808 is suited for tapping 8-32 UNC threads in alloy steel, carbon steel, cast iron, stainless steel, die steel, and hardened steel. The spiral flute geometry and TiCN coating make it especially appropriate for production runs and interrupted cuts in tough ferrous stock. The modified bottoming chamfer allows threading into shallow blind holes where a standard or plug chamfer cannot reach full thread depth. Right-hand thread direction and right-hand flute direction match conventional tapping setups on manual and CNC equipment.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e45-degree right-hand spiral flutes evacuate chips upward, reducing packing in blind holes\u003c\/li\u003e\n  \u003cli\u003eTiCN coating increases surface hardness and extends tool life in abrasive and tough ferrous materials\u003c\/li\u003e\n  \u003cli\u003eModified bottoming chamfer allows threading close to the bottom of a blind bore\u003c\/li\u003e\n  \u003cli\u003eVanadium high-speed steel construction provides toughness and wear resistance\u003c\/li\u003e\n  \u003cli\u003eH2 thread limit and 3B class of fit for standard precision threading applications\u003c\/li\u003e\n  \u003cli\u003e3 flutes for a balance of chip room and core strength at this thread size\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for cutting 8-32 UNC internal threads. Rated for use in alloy steel, carbon steel, cast iron, stainless steel, die steel, and hardened steel. Compatible with standard machine tapping equipment that accepts a 0.255-inch shank diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eAlways power down and secure the workpiece before changing or setting a tap in the machine spindle. Use the appropriate tap drill size for 8-32 UNC threads and ensure the hole depth provides sufficient clearance beyond the required thread length when tapping blind holes. Apply a cutting fluid rated for the specific workpiece material to prolong tool life and maintain thread quality. Inspect the tap and tap holder for runout before production use to avoid tool breakage or out-of-tolerance threads.\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\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\u003eClass of Fit\u003c\/strong\u003e: 3B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H2\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\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\u003eOverall Length\u003c\/strong\u003e: 2.5 inches\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: 0.255 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: 2907808\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51741190553906,"sku":"2907808","price":52.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b8ef5296445def46f2ccf8c8cd99f429.jpg?v=1788829925","url":"https:\/\/voomisupply.com\/products\/osg-2907808-spiral-flute-tap-8-32-unc-ticn-vanadium-hss","provider":"Voomi Supply","version":"1.0","type":"link"}