{"product_id":"osg-1105611708-spiral-point-tap-5-16-18-unc-ticn","title":"Osg 1105611708 Spiral Point Tap 5\/16-18 Unc Ticn","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 1105611708 is a spiral point tap designed for threading 5\/16-18 UNC holes in demanding materials including hardened steel, stainless steel, high-nickel alloy, titanium, and alloy steel. Built from powdered metal with a TiCN coating, this tap delivers superior wear resistance and heat tolerance compared to standard HSS tooling. The plug chamfer style allows it to start threads progressively, making it well suited for through-hole applications. With an H3 thread limit and a 3B class of fit, it produces threads that meet standard tolerance requirements for general mechanical assemblies. Three flutes provide efficient chip evacuation ahead of the cutting edge during the tapping operation.\u003c\/p\u003e\u003cp\u003eThis tap is intended for use in CNC machining centers, drill presses, and tapping machines where right-hand threading is required. The 5\/16-18 UNC designation makes it a common choice for fastener holes in industrial equipment, structural assemblies, and mechanical components across manufacturing and maintenance environments. It is typically used by machinists, tool and die makers, and maintenance technicians working with ferrous and high-alloy workpieces. The Series 312TI designation places it within OSGs TiCN-coated powdered metal tap line, optimized for difficult-to-machine materials where standard coatings fall short.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTiCN coating increases surface hardness and reduces friction for extended tool life in abrasive materials\u003c\/li\u003e\n\u003cli\u003ePowdered metal substrate provides finer grain structure and greater toughness than conventional HSS\u003c\/li\u003e\n\u003cli\u003ePlug chamfer style for progressive thread engagement in through-hole applications\u003c\/li\u003e\n\u003cli\u003eH3 thread limit with 3B class of fit for standard tolerance threading\u003c\/li\u003e\n\u003cli\u003eThree flutes promote forward chip evacuation, reducing recutting in through-hole operations\u003c\/li\u003e\n\u003cli\u003eRight-hand thread direction compatible with standard tapping equipment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for threading 5\/16-18 UNC right-hand threads in hardened steel, stainless steel, high-nickel alloy, titanium, and alloy steel workpieces. Suitable for use in manual and CNC tapping operations requiring H3 thread limit and 3B class of fit.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tap should be installed in a tap holder or collet that provides axial float to prevent thread distortion during machine tapping. Always ensure the workpiece is securely fixtured and the pilot hole diameter is correct for 5\/16-18 UNC before starting. Use an appropriate cutting fluid for the workpiece material, particularly when tapping stainless or high-nickel alloys, to reduce heat buildup and extend tap life. Inspect the tap for chipping or wear before each use and replace when cutting torque increases noticeably.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/16-18 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 Style\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\u003eCoating\u003c\/strong\u003e: TiCN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Powdered Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.72 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 1.125 inches (0.665 inches decimal)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.318 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterrupted Thread\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 312TI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Hardened Steel, Stainless Steel, High-Nickel Alloy, Titanium, Alloy Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.053 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: 1105611708\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51740166357298,"sku":"1105611708","price":76.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1387a1cbc85e69f037e155e448d18e22_b5caca55-739b-45af-87c5-190ade13b590.jpg?v=1788823089","url":"https:\/\/voomisupply.com\/products\/osg-1105611708-spiral-point-tap-5-16-18-unc-ticn","provider":"Voomi Supply","version":"1.0","type":"link"}