{"product_id":"osg-1707108-spiral-point-tap-1-4-20-unc-ticn-coated","title":"Osg 1707108 Spiral Point Tap 1\/4-20 Unc Ticn Coated","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 1707108 is a spiral point tap designed for threading 1\/4-20 UNC holes in demanding materials. Built from powdered metal and coated with TiCN for extended tool life, this plug-chamfer tap is engineered for right-hand threading in hardened steel, stainless steel, high-nickel alloys, and titanium. The spiral point geometry pushes chips forward ahead of the cutting zone, making it well suited for through-hole applications. With a 3B class of fit and H3 thread limit, it produces threads to close tolerances required in precision assemblies. Licensed machinists and tool-and-die tradespeople will find it fits standard tap holders and CNC tapping cycles.\u003c\/p\u003e\u003cp\u003eThis tap is used in production and maintenance machining environments where through-holes require consistent 1\/4-20 UNC threads in tough or abrasive workpiece materials. The TiCN coating reduces friction and heat buildup, extending service intervals compared to uncoated tooling. It is appropriate for manual tapping, drill press setups, and CNC machining centers that support rigid or floating tap holders. The 312NI series designation indicates suitability for nickel alloys and titanium in addition to stainless and hardened steel applications.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e1\/4-20 UNC thread form, right-hand cut, 3B class of fit with H3 thread limit\u003c\/li\u003e\n\u003cli\u003e3-flute spiral point design pushes chips forward for through-hole threading\u003c\/li\u003e\n\u003cli\u003ePowdered metal construction provides wear resistance in abrasive materials\u003c\/li\u003e\n\u003cli\u003eTiCN coating reduces friction and extends tool life in hardened and high-alloy steels\u003c\/li\u003e\n\u003cli\u003ePlug chamfer for general-purpose through-hole starting and threading\u003c\/li\u003e\n\u003cli\u003eNo coolant-through requirement — compatible with flood or external coolant delivery\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for threading 1\/4-20 UNC through holes in hardened steel, stainless steel, high-nickel alloy, and titanium workpieces. Part of the OSG 312NI series.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist following standard tapping procedures. Ensure the workpiece is securely fixtured and the spindle is properly aligned before engaging the tap. Use appropriate cutting fluid or coolant for the workpiece material to prevent galling, particularly with stainless steel and nickel alloys. Inspect the tap for wear or chipping between uses and replace before thread quality degrades.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-20 UNC\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: Plug\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: H3\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: Powdered Metal\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: Hardened Steel, Stainless Steel, High-Nickel Alloy, Titanium\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: 1.12 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\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 312NI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.033 pounds\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: 1707108\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51731637567794,"sku":"1707108","price":75.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/07d3feb45bf280596a202da2396a371c.jpg?v=1788733428","url":"https:\/\/voomisupply.com\/products\/osg-1707108-spiral-point-tap-1-4-20-unc-ticn-coated","provider":"Voomi Supply","version":"1.0","type":"link"}