{"product_id":"accupro-t2634485-spiral-flute-tap-3-8-16-modified-bottoming","title":"Accupro T2634485 Spiral Flute Tap 3\/8-16 Modified Bottoming","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ACCUPRO T2634485 is a spiral flute tap designed for threading 3\/8-16 inch holes in production and maintenance machining applications. Built from 3% vanadium high-speed steel with a bright\/uncoated finish, it delivers solid wear resistance in a range of ferrous and non-ferrous workpiece materials. The tap features 3 right-hand flutes with a 33-degree helix angle, which helps evacuate chips upward out of the hole during tapping. The modified bottoming chamfer allows threading close to the bottom of blind holes while still providing enough lead to start cleanly. Overall length is 2-15\/16 inches with a thread length of 16 mm. This tap is intended for machinists, tool and die makers, and maintenance technicians working with standard fractional inch thread forms.\u003c\/p\u003e\n\u003cp\u003eThis tap is suited for blind-hole and through-hole applications where a 3\/8-16 UNC thread form is required. The 2B class of fit produces a standard commercial-tolerance internal thread appropriate for general fastener assembly. The H5 thread limit provides consistent sizing for applications where controlled fit is required. The spiral flute design makes it well suited for interrupted cuts and softer materials where chip flow out of the hole is critical to thread quality. It is commonly used in manual tapping, CNC machining centers, and drill press setups.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e3\/8-16 UNC thread size with 2B class of fit for standard commercial tolerance\u003c\/li\u003e\n  \u003cli\u003eModified bottoming chamfer for threading near the base of blind holes\u003c\/li\u003e\n  \u003cli\u003e33-degree helix angle promotes upward chip evacuation during spiral flute tapping\u003c\/li\u003e\n  \u003cli\u003e3% vanadium high-speed steel construction for improved wear resistance\u003c\/li\u003e\n  \u003cli\u003eH5 thread limit for controlled internal thread sizing\u003c\/li\u003e\n  \u003cli\u003eRight-hand thread and right-hand flute direction for conventional tapping setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard replacement or production tap for 3\/8-16 UNC threading applications in manual and CNC tapping operations across general machining, maintenance, and fabrication environments.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall in a tap holder, collet chuck, or floating tap holder appropriate for the shank diameter of 9.68 mm. Always ensure the workpiece and tapping fixture are securely clamped before beginning the tapping cycle. Apply cutting fluid appropriate for the workpiece material to extend tool life and improve thread finish. Inspect the tap for wear or chipping before each use and replace when thread quality degrades.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3\/8-16\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer Type\u003c\/strong\u003e: Modified Bottoming\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: H5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 33 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Style\u003c\/strong\u003e: Medium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2-15\/16 inches (2.9375 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 16 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 9.68 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Vanadium High-Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: 3% Vanadium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOversize\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.14 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: ACCUPRO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: T2634485\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51748322115890,"sku":"T2634485","price":39.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d038a8e7a95fcf2d3ea4f6dec0ccee89.jpg?v=1788892426","url":"https:\/\/voomisupply.com\/products\/accupro-t2634485-spiral-flute-tap-3-8-16-modified-bottoming","provider":"Voomi Supply","version":"1.0","type":"link"}