{"product_id":"osg-1301301708-spiral-flute-tap-3-4-10-unc-bottoming","title":"Osg 1301301708 Spiral Flute Tap 3\/4-10 Unc Bottoming","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 1301301708 is a spiral flute bottoming tap designed for threading 3\/4-10 UNC holes in a wide range of ferrous and non-ferrous metals. Built from vanadium high-speed steel and finished with a TiCN (titanium carbonitride) coating, this tap delivers extended tool life and resistance to heat buildup in demanding production environments. The bottoming chamfer allows threading close to the bottom of blind holes. With a 15-degree right-hand helix angle and 4 flutes, the spiral flute geometry evacuates chips upward, keeping the cutting zone clear during the tapping cycle. Coolant-through capability is supported. Licensed machinists and CNC operators in job shops and production facilities are the primary users of this tool.\u003c\/p\u003e\u003cp\u003eThis tap is suited for through-hole and blind-hole threading operations on alloy steel, carbon steel, cast iron, aluminum, and die steel. The 2B class of fit specifies a standard commercial tolerance appropriate for most threaded fastener applications. The bottoming chamfer style makes it the correct choice when thread engagement must begin at or very near the bottom of a blind hole, typically used as the final tap in a tapping sequence following a plug or taper tap.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBottoming chamfer for threading to the bottom of blind holes\u003c\/li\u003e\n\u003cli\u003eTiCN coating improves wear resistance and reduces friction across a range of materials\u003c\/li\u003e\n\u003cli\u003eVanadium high-speed steel construction for toughness in interrupted cuts and harder alloys\u003c\/li\u003e\n\u003cli\u003eSpiral flute geometry promotes upward chip evacuation in blind-hole applications\u003c\/li\u003e\n\u003cli\u003e15-degree helix angle provides smooth cutting action\u003c\/li\u003e\n\u003cli\u003eCoolant-through design compatible with coolant-fed spindles and toolholders\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-use tap for 3\/4-10 UNC threading operations; compatible with standard 3\/4-inch tap holders and tooling systems that accept this shank diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use of this tap should be performed by a qualified machinist. Ensure the workpiece is securely fixtured and the spindle is aligned to the hole axis before tapping to prevent tap breakage. Apply appropriate cutting fluid or activate coolant-through flow before beginning the tapping cycle. Use correct feed rate and RPM for the workpiece material; do not force the tap if resistance increases unexpectedly.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3\/4-10 UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass of Fit\u003c\/strong\u003e: 2B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer Type\u003c\/strong\u003e: Bottoming\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\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\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 15 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 10\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 (V)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.375 inches (125 millimeters)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.799 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.194 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeck Length\u003c\/strong\u003e: 0.866 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 0.6875 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.442 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.32 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Alloy Steel, Aluminum, Carbon Steel, Cast Iron, Die Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 13013\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOversize\u003c\/strong\u003e: No\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: 1301301708\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51744220021042,"sku":"1301301708","price":315.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/2476de4c975fc46855851061c71b71da_a262a9e5-7eeb-4c34-bb4a-4da0aac1623c.jpg?v=1788855123","url":"https:\/\/voomisupply.com\/products\/osg-1301301708-spiral-flute-tap-3-4-10-unc-bottoming","provider":"Voomi Supply","version":"1.0","type":"link"}