{"product_id":"osg-2232201-spiral-flute-tap-7-16-20-unf-modified-bottoming","title":"Osg 2232201 Spiral Flute Tap 7\/16-20 Unf Modified Bottoming","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 2232201 is a spiral flute tap designed for cutting internal 7\/16-20 UNF right-hand threads in a variety of ferrous metals. Built from vanadium high-speed steel with a steam oxide coating, this tap handles alloy steel, carbon steel, cast iron, die steel, hardened steel, and stainless steel. The 45-degree helix angle pulls chips up and out of the hole during cutting, which is the defining advantage of a spiral flute design. The modified bottoming chamfer allows threading close to the bottom of a blind hole. Three flutes provide a balance of chip clearance and tool strength at this thread size. Overall length is 3.937 inches. Licensed machinists and maintenance mechanics are the primary installers.\u003c\/p\u003e\n\u003cp\u003eThis tap is suited for production and maintenance machining environments where blind-hole tapping is required in ferrous and alloy materials. The 2B class of fit delivers a standard commercial thread tolerance appropriate for the majority of mechanical fastening applications. The 45-degree spiral flute geometry makes it particularly effective in CNC tapping cycles and in hand-tapping setups where chip evacuation in a blind hole is a concern. No coolant-through capability is present, so flood or brush-applied cutting fluid should be used at the spindle or by hand.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e7\/16-20 UNF thread form, 20 threads per inch, right-hand direction\u003c\/li\u003e\n  \u003cli\u003eModified bottoming chamfer for threading close to the base of blind holes\u003c\/li\u003e\n  \u003cli\u003e45-degree helix angle spiral flute geometry for upward chip evacuation\u003c\/li\u003e\n  \u003cli\u003eVanadium high-speed steel construction for wear resistance in hard ferrous materials\u003c\/li\u003e\n  \u003cli\u003eSteam oxide coating reduces friction and provides light corrosion resistance\u003c\/li\u003e\n  \u003cli\u003e2B class of fit — standard commercial thread tolerance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eRated for use in alloy steel, carbon steel, cast iron, die steel, hardened steel, and stainless steel. Designed as an OEM-style replacement or direct equivalent for 7\/16-20 UNF modified bottoming spiral flute taps in the OSG Series 220 product line.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists or maintenance mechanics using a tap wrench, tapping head, or CNC rigid tapping cycle. The workpiece should be secured and the drill press or machining center spindle should be stopped and locked out before changing or inspecting the tap. Apply cutting fluid rated for the workpiece material before tapping, and maintain proper tap alignment to avoid thread distortion or breakage. No coolant-through passages are present on this tap, so external cutting fluid application is required.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 7\/16-20 UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 20\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\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\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 45 degrees\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\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\u003eMaterial Application\u003c\/strong\u003e: Alloy Steel, Carbon Steel, Cast Iron, Die Steel, Hardened Steel, Stainless Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.937 inches (100 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.57 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNeck Length\u003c\/strong\u003e: 1.712 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\u003eSquare Size\u003c\/strong\u003e: 0.242 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 0.406 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 220\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: 2232201\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51737372229938,"sku":"2232201","price":90.61,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b7e3959387b29dd53ebcc4f633dcbfc3_2d1b6e39-cffc-4fc8-b7d6-0cae5c9b4546.jpg?v=1788787743","url":"https:\/\/voomisupply.com\/products\/osg-2232201-spiral-flute-tap-7-16-20-unf-modified-bottoming","provider":"Voomi Supply","version":"1.0","type":"link"}