{"product_id":"osg-1400101508-thread-forming-tap-1-72-unf-bottoming-cobalt","title":"Osg 1400101508 Thread Forming Tap 1-72 Unf Bottoming Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 1400101508 is a thread forming tap in the HY-PRO NRT series, designed for cold-forming internal threads without cutting chips. Built from cobalt high-speed steel with a TiCN coating, this tap handles demanding materials including alloy steel, stainless steel, hardened steel, carbon steel, die steel, and aluminum. The bottoming chamfer style — with 1 to 1.5 chamfered threads — allows threading close to the bottom of a blind hole. Sized for 1-72 UNF threads at a class of fit 2B with an H3 thread limit, this tap is used by machinists and precision tooling technicians working with small-diameter fastener applications.\u003c\/p\u003e\n\u003cp\u003eThis tap is suited for blind hole threading operations in production and maintenance environments where chip evacuation is not practical. The 1-72 UNF thread form is common in miniature fastener applications found in instrumentation, electronics, and precision mechanical assemblies. The thread forming process displaces material rather than cutting it, resulting in stronger threads and eliminating chip-related issues in confined bores. Right-hand thread direction is standard. Coolant-through is not supported on this tap.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCobalt HSS construction for elevated heat and wear resistance in tough materials\u003c\/li\u003e\n  \u003cli\u003eTiCN coating reduces friction and extends tool life across a broad material range\u003c\/li\u003e\n  \u003cli\u003eBottoming chamfer with 1 to 1.5 chamfered threads for threading to the bottom of blind holes\u003c\/li\u003e\n  \u003cli\u003eThread forming design eliminates chips, reducing tap breakage risk in small-diameter holes\u003c\/li\u003e\n  \u003cli\u003eH3 thread limit and 2B class of fit for precise tolerance control\u003c\/li\u003e\n  \u003cli\u003eRight-hand thread direction, 72 threads per inch, 1-72 UNF\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for blind hole thread forming in alloy steel, aluminum, carbon steel, die steel, hardened steel, and stainless steel workpieces. Material application codes P and N apply.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists using a tap wrench, tapping head, or CNC machine with rigid tapping capability. Ensure the correct drill size for thread forming is used — forming taps require a larger pilot hole than cutting taps for the same thread size. Apply appropriate tapping fluid for the workpiece material before starting. Secure the workpiece firmly and advance the tap slowly with consistent pressure to avoid tap breakage in this small diameter.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1-72\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 72\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer\u003c\/strong\u003e: Bottoming\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfered Threads\u003c\/strong\u003e: 1 to 1.5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClass of Fit\u003c\/strong\u003e: 2B\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: 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\u003eOverall Length\u003c\/strong\u003e: 1.688 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: 0.413 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: HY-PRO NRT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.005 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: 1400101508\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51747570352434,"sku":"1400101508","price":42.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f9e0a7535aeb52c331c9ab34d6077839_16a2fb35-abdc-47f7-81b8-5963a8f53f6e.jpg?v=1788882746","url":"https:\/\/voomisupply.com\/products\/osg-1400101508-thread-forming-tap-1-72-unf-bottoming-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}