{"product_id":"accupro-t2644422b-spiral-flute-tap-1-4-28-2-flute-hss","title":"Accupro T2644422B Spiral Flute Tap 1\/4-28 2 Flute Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ACCUPRO T2644422B is a spiral flute tap designed for cutting 1\/4-28 UNF internal threads in aluminum and similar materials. Built from 3% Vanadium High Speed Steel, this tap delivers consistent thread quality in production and maintenance applications. The fast helix spiral flute design at 40 degrees efficiently evacuates chips upward out of the hole, reducing the risk of chip packing in blind-hole applications. With a 2B class of fit and a modified bottoming chamfer, it threads closer to the bottom of a blind hole than a standard taper tap. The bright, uncoated finish makes it easy to inspect for wear after use.\u003c\/p\u003e\n\u003cp\u003eThis tap is suited for threading aluminum workpieces in blind-hole setups where chip evacuation is critical. The modified bottoming chamfer provides a short lead-in, allowing threads to be cut near the base of a blind hole without the longer approach of a plug or taper tap. At 2.5 inches overall length with a 12.00 mm thread length, it fits standard tap handles and machine spindles used in light machining, maintenance, and fabrication environments. The right-hand flute and right-hand thread configuration is standard for conventional threading operations.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1\/4-28 UNF thread size for fine-pitch threading applications\u003c\/li\u003e\n  \u003cli\u003e40-degree fast helix spiral flute for efficient upward chip evacuation in blind holes\u003c\/li\u003e\n  \u003cli\u003eModified bottoming chamfer for threading close to the bottom of blind holes\u003c\/li\u003e\n  \u003cli\u003e3% Vanadium HSS construction for wear resistance and edge retention\u003c\/li\u003e\n  \u003cli\u003e2B class of fit for standard tolerance internal threads\u003c\/li\u003e\n  \u003cli\u003eBright uncoated finish allows easy visual inspection of cutting edges\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for threading aluminum in blind-hole applications. Compatible with standard tap handles and tapping machines accepting the specified shank diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eSpiral flute taps are typically used by machinists and maintenance technicians in hand tapping or machine tapping operations. Always ensure the workpiece is securely fixtured before tapping. Use the appropriate cutting fluid or lubricant recommended for the workpiece material to extend tool life and improve thread quality. Inspect the cutting edges for wear before each use, and never force a tap that has stopped turning freely, as this can cause breakage.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-28\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\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\u003eMaterial\u003c\/strong\u003e: 3% Vanadium High Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: 3% Vanadium HSS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating \/ Finish\u003c\/strong\u003e: Bright \/ Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 40 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Style\u003c\/strong\u003e: Fast Spiral\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: 2.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 12.00 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 6.48 mm\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\u003eMaterial Application\u003c\/strong\u003e: Aluminum\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.08 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: T2644422B\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51752485781810,"sku":"T2644422B","price":49.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a72f3dad397ba5ba4effbe526234eb57.jpg?v=1788928496","url":"https:\/\/voomisupply.com\/products\/accupro-t2644422b-spiral-flute-tap-1-4-28-2-flute-hss","provider":"Voomi Supply","version":"1.0","type":"link"}