{"product_id":"osg-1766501-extension-tap-6-32-unc-3-flute-h3-spiral-flute","title":"Osg 1766501 Extension Tap 6-32 Unc 3 Flute H3 Spiral Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 1766501 is a spiral flute extension tap designed for threading 6-32 UNC internal threads in applications that require extended reach. Built from vanadium high-speed steel with a steam oxide finish, this tap delivers consistent thread quality in carbon steel, hardened steel, and stainless steel workpieces. The modified bottoming chamfer allows threading close to the bottom of blind holes. With an overall length of 6 inches and a 30-degree helix angle, it is suited for through-hole and near-bottom blind-hole threading in production and maintenance environments. Machinists and tool-and-die professionals are the primary users of this tap.\u003c\/p\u003e\u003cp\u003eThis extension tap is used in machining, fabrication, and maintenance applications where standard-length taps cannot reach the required thread depth. The 6-inch overall length and reduced shank make it practical for deep-hole and extended-reach threading setups on mills, drill presses, and tapping machines. Its H3 thread limit supports standard 2B class-of-fit tolerances, making threads compatible with common 6-32 UNC fasteners used across general manufacturing and assembly operations.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eVanadium high-speed steel construction for wear resistance in steel, hardened steel, and stainless steel\u003c\/li\u003e\n\u003cli\u003eSteam oxide finish reduces friction and provides mild corrosion resistance during storage and use\u003c\/li\u003e\n\u003cli\u003eModified bottoming chamfer for threading close to the bottom of blind holes\u003c\/li\u003e\n\u003cli\u003e30-degree right-hand helix angle promotes efficient chip evacuation in blind-hole threading\u003c\/li\u003e\n\u003cli\u003eReduced shank with 6-inch overall length provides extended reach for deep or restricted-access threading\u003c\/li\u003e\n\u003cli\u003eH3 thread limit with 2B class of fit for consistent, standard-tolerance 6-32 UNC threads\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for threading 6-32 UNC right-hand internal threads in carbon steel, hardened steel, and stainless steel workpieces. Compatible with standard tapping chucks and holders sized for a 0.141-inch shank diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tap should be installed and operated by a qualified machinist familiar with tapping feeds, speeds, and cutting fluid selection for the workpiece material. Secure the tap in a properly aligned tapping chuck or holder to prevent tap breakage due to misalignment. Always use an appropriate cutting or tapping fluid for the material being threaded. Power down or de-energize the machine spindle before changing or inspecting tooling.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTap Type\u003c\/strong\u003e: Spiral Flute Extension\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 6-32\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass of Fit\u003c\/strong\u003e: 2B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer\u003c\/strong\u003e: Modified Bottoming\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 30 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\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: 6 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.248 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeck Length\u003c\/strong\u003e: 1.031 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: 0.11 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\u003eReduced Shank\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Vanadium High-Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Steam Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Carbon Steel, Hardened Steel, Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 398\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.4 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: 1766501\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51748097360178,"sku":"1766501","price":112.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f7ad55dda1aecd8412e5da887803052e.jpg?v=1788889033","url":"https:\/\/voomisupply.com\/products\/osg-1766501-extension-tap-6-32-unc-3-flute-h3-spiral-flute","provider":"Voomi Supply","version":"1.0","type":"link"}