{"product_id":"osg-1400158508-thread-forming-tap-8-32-unc-cobalt-ticn","title":"Osg 1400158508 Thread Forming Tap 8-32 Unc Cobalt Ticn","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 1400158508 is a thread forming tap designed for 8-32 UNC threads with a modified bottoming chamfer. Made from cobalt high-speed steel and coated with TiCN, it is built for forming internal threads in blind holes without cutting chips. The modified bottoming chamfer features 2 to 2.5 chamfered threads, allowing it to thread close to the bottom of a blind hole. With an H11 thread limit and right-hand thread direction, this tap suits precision threading operations in production and maintenance environments. It is installed by machinists, tool-and-die technicians, and maintenance professionals working with hand or machine tapping setups.\u003c\/p\u003e\u003cp\u003eThis tap is rated for blind hole threading across a range of metallic workpiece materials. Its TiCN coating reduces friction and extends tool life in demanding applications. The 8-32 UNC thread form and overall length of 2.125 inches make it suitable for general-purpose threading in small fastener applications found in mechanical assemblies, enclosures, and precision fixtures. The shank diameter of 0.168 inches fits standard tap holders and tapping heads used in vertical mills, drill presses, and hand tap handles.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eThread forming design displaces material rather than cutting, producing stronger threads with no chip generation in blind holes\u003c\/li\u003e\n\u003cli\u003eCobalt HSS construction provides heat resistance and toughness in hard or abrasive workpiece materials\u003c\/li\u003e\n\u003cli\u003eTiCN coating lowers friction and extends service life compared to uncoated cobalt taps\u003c\/li\u003e\n\u003cli\u003eModified bottoming chamfer with 2 to 2.5 chamfered threads allows threading close to the bottom of blind holes\u003c\/li\u003e\n\u003cli\u003eH11 thread limit maintains precise thread tolerance for tight-fit fastener applications\u003c\/li\u003e\n\u003cli\u003eCompatible with alloy steel, aluminum, carbon steel, die steel, hardened steel, and stainless steel workpieces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eRated for use in alloy steel, aluminum, carbon steel, die steel, hardened steel, and stainless steel. Designed for blind hole threading applications requiring 8-32 UNC internal threads. Part of the OSG HY-PRO NRT Series 14001 product line.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThread forming taps require a properly sized forming tap drill hole, which differs from cutting tap drill sizes — consult a forming tap drill chart for the correct pilot hole diameter before use. Power down or de-energize any machine tool before securing the tap in the holder. Use a tapping fluid appropriate for the workpiece material, especially when tapping hardened or stainless steel. Do not reverse the tap to break chips, as thread forming taps produce no chips and reversing mid-thread can gall or damage the formed thread.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\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\u003eChamfer Type\u003c\/strong\u003e: Modified Bottoming\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfered Threads\u003c\/strong\u003e: 2 to 2.5P\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H11\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.374 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTapping Depth\u003c\/strong\u003e: 0.752 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.168 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\u003eSquare Length\u003c\/strong\u003e: 0.250 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Cobalt High-Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiCN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Alloy Steel, Aluminum, Carbon Steel, Die Steel, Hardened Steel, Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Blind Hole Threading\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 14001 HY-PRO NRT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.015 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: 1400158508\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51729339941170,"sku":"1400158508","price":35.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/480474d67749a9cb9f5fbb06b328360c.jpg?v=1788703198","url":"https:\/\/voomisupply.com\/products\/osg-1400158508-thread-forming-tap-8-32-unc-cobalt-ticn","provider":"Voomi Supply","version":"1.0","type":"link"}