{"product_id":"osg-1405006908-thread-forming-tap-1-4-20-unc-bottoming-hss","title":"Osg 1405006908 Thread Forming Tap 1\/4-20 Unc Bottoming Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 1405006908 is a thread forming tap in the EXOTAP VP-NRT series, designed for bottoming applications in blind hole threading. Unlike cutting taps, thread forming taps displace material rather than cut it, producing stronger threads with no chips. This tap is manufactured from powdered metal high-speed steel and carries a TiCN coating for improved wear resistance and lubricity. It is sized for 1\/4-20 UNC threads with a right-hand thread direction and an H6 thread limit. The overall length is 2.5 inches, with a thread length of 0.5945 inches and a tapping depth of 0.9960 inches. It is installed by machinists and maintenance professionals working with tapping machines, CNC machining centers, or hand tap holders.\u003c\/p\u003e\n\u003cp\u003eThis tap is suited for blind hole threading across a broad range of workpiece materials, including alloy steel, carbon steel, die steel, hardened steel, stainless steel, and aluminum. The bottoming chamfer with 1 to 1.5 chamfered threads allows threading close to the bottom of a blind hole. The EXOTAP VP-NRT series is engineered for demanding production and toolroom environments where thread quality and tool life are critical. It is a strong fit for job shops, maintenance operations, and manufacturing facilities working across mixed material schedules.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eThread forming design displaces material to produce stronger, chip-free threads in blind holes\u003c\/li\u003e\n  \u003cli\u003ePowdered metal high-speed steel construction for consistent hardness and wear resistance\u003c\/li\u003e\n  \u003cli\u003eTiCN coating reduces friction and extends tool life across multiple materials\u003c\/li\u003e\n  \u003cli\u003eBottoming chamfer with 1 to 1.5 chamfered threads for threading near the bottom of blind holes\u003c\/li\u003e\n  \u003cli\u003eH6 thread limit for controlled thread fit and dimensional accuracy\u003c\/li\u003e\n  \u003cli\u003eRight-hand thread direction, compatible with standard tapping setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in 1\/4-20 UNC blind hole applications across alloy steel, carbon steel, die steel, hardened steel, stainless steel, and aluminum workpieces. Material application codes P, M, and N apply.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThread forming taps require a properly sized forming tap drill hole, which is larger than a standard cut tap drill size — consult a thread forming tap drill chart before drilling. Use appropriate tapping fluid or cutting oil matched to the workpiece material to prevent galling and extend tool life. Secure the tap in a rigid, synchronous holder or tapping attachment to avoid tap breakage. Ensure the workpiece is firmly fixtured before starting.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-20\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\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 1.5P\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 20\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H6\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.5945 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTapping Depth\u003c\/strong\u003e: 0.9960 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.2550 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.1910 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 0.3125 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Powdered Metal 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\u003eApplication\u003c\/strong\u003e: Blind Hole Threading\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: EXOTAP VP-NRT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.033 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: 1405006908\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51738968162610,"sku":"1405006908","price":81.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a861c53e148dbc7d02cc247de29501f1.jpg?v=1788807402","url":"https:\/\/voomisupply.com\/products\/osg-1405006908-thread-forming-tap-1-4-20-unc-bottoming-hss","provider":"Voomi Supply","version":"1.0","type":"link"}