{"product_id":"osg-1400105708-thread-forming-tap-4-40-unc-cobalt-ticn","title":"Osg 1400105708 Thread Forming Tap 4-40 Unc Cobalt Ticn","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 1400105708 is a thread forming tap designed for producing 4-40 UNC internal threads without cutting chips. Rather than removing material, thread forming taps cold-form the thread profile, which results in stronger threads and eliminates chip evacuation concerns. This tap is manufactured from cobalt high-speed steel and carries a TiCN coating for increased surface hardness and heat resistance. With a modified bottoming chamfer of 2 to 2.5 threads, it is suited for threading close to the bottom of blind holes. The overall length is 1.875 inches with a tapping depth of 0.559 inches. Machinists and toolroom technicians use this tap in CNC machining centers, drill presses, and manual tapping setups.\u003c\/p\u003e\u003cp\u003eThis tap is intended for blind hole threading applications across a wide range of metallic workpiece materials including alloy steel, aluminum, carbon steel, die steel, hardened steel, and stainless steel. It is well suited for high-production environments where thread strength and surface finish are critical. The modified bottoming chamfer allows threading deeper into blind holes compared to standard plug or taper chamfer taps. The right-hand thread direction follows standard UNC thread convention. This is a Series 14001 HY-PRO NRT tap from OSG.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eThread forming design eliminates chips, reducing the risk of chip packing in blind holes\u003c\/li\u003e\n\u003cli\u003eCobalt construction provides increased heat and wear resistance over standard HSS\u003c\/li\u003e\n\u003cli\u003eTiCN coating reduces friction and extends tool life in abrasive and hard materials\u003c\/li\u003e\n\u003cli\u003eModified bottoming chamfer of 2 to 2.5 threads allows threading close to hole bottom\u003c\/li\u003e\n\u003cli\u003eH7 thread limit suits close-tolerance UNC thread fit requirements\u003c\/li\u003e\n\u003cli\u003eRight-hand, 4-40 UNC thread profile for standard fastener applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for 4-40 UNC blind hole threading in alloy steel, aluminum, carbon steel, die steel, hardened steel, and stainless steel workpieces. Material application codes P and N apply.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThread forming taps require a specific forming tap drill size, which differs from standard cut tap drill sizes — consult a forming tap drill chart before setup. Ensure the tapping machine or tap handle is properly aligned to avoid tap breakage, particularly in small-diameter taps such as this 4-40 size. Use a lubricant or cutting fluid appropriate for the workpiece material to reduce forming forces and extend tap life. Do not use this tap as a cut tap or attempt to reverse-thread an already cut hole.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 4-40\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: 40\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 2.5 threads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Cobalt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiCN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.875 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.295 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTapping Depth\u003c\/strong\u003e: 0.559 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.141 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.110 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 0.1875 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\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\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrade Name\u003c\/strong\u003e: HY-PRO NRT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 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: 1400105708\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51732365312306,"sku":"1400105708","price":32.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/480474d67749a9cb9f5fbb06b328360c_964fca77-6fab-41d3-87a1-fcd3d749f326.jpg?v=1788742118","url":"https:\/\/voomisupply.com\/products\/osg-1400105708-thread-forming-tap-4-40-unc-cobalt-ticn","provider":"Voomi Supply","version":"1.0","type":"link"}