{"product_id":"accupro-t2640165-spiral-point-tap-4-40-3-flutes-plug","title":"Accupro T2640165 Spiral Point Tap 4-40 3 Flutes Plug","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO T2640165 is a spiral point tap designed for cutting right-hand internal threads in a 4-40 unified fine thread form. With 3 flutes and a plug chamfer, it pushes chips forward ahead of the cutting zone, making it well suited for through-hole tapping operations. The tap is manufactured from vanadium high speed steel (3% vanadium HSS), which provides improved wear resistance and edge retention compared to standard M2 HSS. The bright finish leaves the tool in an uncoated state, appropriate for use with cutting fluids on a range of steel workpiece materials. The H5 thread limit governs the tolerance class of the finished thread, producing a fit suitable for standard fastener engagement.\u003c\/p\u003e\u003cp\u003eThis tap is used in machine shop, production, and maintenance environments where 4-40 threaded holes are required in steel components. The plug chamfer style makes it the standard choice for through-hole applications on CNC machining centers, drill presses, and tapping machines. It is appropriate for use in light-duty production tapping as well as bench or hand-tapping with a proper tap handle where through-hole access is available.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSpiral point geometry pushes chips forward for through-hole tapping efficiency\u003c\/li\u003e\n\u003cli\u003e3 flutes balanced for chip flow and rigidity in small-diameter taps\u003c\/li\u003e\n\u003cli\u003eVanadium high speed steel (3% vanadium HSS) for enhanced wear resistance\u003c\/li\u003e\n\u003cli\u003eH5 thread limit for controlled tolerance in standard 4-40 thread fits\u003c\/li\u003e\n\u003cli\u003ePlug chamfer for straightforward entry in through-hole applications\u003c\/li\u003e\n\u003cli\u003eBright finish compatible with a wide range of cutting fluids and lubricants\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for tapping 4-40 unified fine thread holes in steel and similar ferrous workpiece materials. Verify spindle speed, feed rate, and lubrication requirements for the specific material being tapped before use.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eMachinist or toolroom personnel should secure the workpiece and ensure the tap is aligned perpendicular to the hole axis before beginning the tapping cycle. Apply appropriate cutting fluid or tapping oil for the workpiece material to extend tool life and improve thread finish. Never force a tap that has stopped advancing — back off immediately to clear chip buildup and avoid breakage. For machine tapping, use a floating tap holder to compensate for any minor misalignment.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 4-40\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer Style\u003c\/strong\u003e: Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Vanadium High Speed Steel (3% Vanadium HSS)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating \/ Finish\u003c\/strong\u003e: Bright\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 11.00 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.87 inches (47.60 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3.58 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Steels\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 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: ACCUPRO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: T2640165\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51744830882098,"sku":"T2640165","price":31.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b7dc49fce6d508d994ec0b4ca7e3f938.jpg?v=1788861155","url":"https:\/\/voomisupply.com\/products\/accupro-t2640165-spiral-point-tap-4-40-3-flutes-plug","provider":"Voomi Supply","version":"1.0","type":"link"}