{"product_id":"osg-1400142800-thread-forming-tap-1-2-13-unc-cobalt","title":"Osg 1400142800 Thread Forming Tap 1\/2-13 Unc Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 1400142800 is a cobalt thread forming tap in the HY-PRO NRT series, designed for cold-forming internal threads without cutting or producing chips. It carries a 1\/2-13 UNC thread specification with a modified bottoming chamfer of 2 to 2.5 threads, making it suited for threading close to the bottom of blind holes. The tap runs right-hand thread direction, carries a Class 3B fit, and is finished to an H5 thread limit. Overall length is 3.375 inches with a shank diameter of 0.367 inches. Licensed machinists and tool and die professionals install this tap in production and job-shop environments where chip-free threading is required.\u003c\/p\u003e\u003cp\u003eThis tap is built for blind hole threading applications across a broad range of ferrous and non-ferrous metals. Compatible material applications include alloy steel, aluminum, carbon steel, die steel, hardened steel, and stainless steel. It is well suited for CNC tapping centers and manual machines where controlled torque and rigid toolholding are available. The bright finish and cobalt construction support performance in tough-to-machine materials that would accelerate wear in standard HSS taps.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eThread forming design produces no chips, reducing clearing time in blind hole operations\u003c\/li\u003e\n\u003cli\u003eCobalt construction provides elevated heat resistance for harder alloys and stainless steel\u003c\/li\u003e\n\u003cli\u003eModified bottoming chamfer (2 to 2.5 threads) allows threading close to hole bottom\u003c\/li\u003e\n\u003cli\u003eH5 thread limit and Class 3B fit ensure consistent, tight-tolerance thread production\u003c\/li\u003e\n\u003cli\u003eRight-hand thread direction compatible with standard CNC and manual tapping setups\u003c\/li\u003e\n\u003cli\u003eBright finish suitable for use with standard tapping fluids and cutting oils\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for blind hole threading in alloy steel, aluminum, carbon steel, die steel, hardened steel, and stainless steel workpieces requiring 1\/2-13 UNC Class 3B internal threads.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist following proper speeds and feeds for thread forming taps, which typically require higher torque than cutting taps of the same size. Use an appropriate tapping fluid or cutting oil for the workpiece material. Ensure the tap holder provides rigid, concentric alignment to avoid tap breakage, especially near hole bottom. Never reverse the tap abruptly at depth in blind hole applications.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/2-13\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\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\u003eMaterial\u003c\/strong\u003e: Cobalt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\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: H5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 13\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.375 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.9213 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTapping Depth\u003c\/strong\u003e: 1.933 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.367 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.275 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 0.4375 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\u003eMaterial Application\u003c\/strong\u003e: Alloy Steel, Aluminum, Carbon Steel, Die Steel, Hardened Steel, Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: HY-PRO NRT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.129 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: 1400142800\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51750719226162,"sku":"1400142800","price":72.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/354a85e513a0f8e1a3c0f808d45c1dac.jpg?v=1788918968","url":"https:\/\/voomisupply.com\/products\/osg-1400142800-thread-forming-tap-1-2-13-unc-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}