{"product_id":"import-bdna-20744-straight-flute-tap-3-4-10-unc-bottoming","title":"Import BDNA-20744 Straight Flute Tap 3\/4-10 Unc Bottoming","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe IMPORT BDNA-20744 is a bottoming straight flute tap designed for cutting right-hand internal threads in pre-drilled holes. Built from high-speed steel (HSS) with a gold oxide coating, it produces 3\/4-10 UNC threads with 4 flutes and a thread limit of H3. The bottoming chamfer allows threading to run nearly to the bottom of a blind hole, making it well suited for close-tolerance work where full thread depth is required near the hole floor. Machinists, maintenance technicians, and fabricators use this tap in manual and machine tapping operations.\u003c\/p\u003e\u003cp\u003eThis tap is appropriate for threading ferrous metals, aluminum, and similar machinable materials in production and repair applications. The 3\/4-10 UNC designation indicates a coarse-thread profile with 10 threads per inch, which is commonly specified in structural fastening, equipment repair, and general industrial fabrication. The gold oxide finish provides mild lubricity and corrosion resistance during cutting and storage.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBottoming chamfer for threading close to the bottom of blind holes\u003c\/li\u003e\n\u003cli\u003eHigh-speed steel construction for durability across a range of machinable metals\u003c\/li\u003e\n\u003cli\u003eGold oxide coating provides lubricity and light corrosion resistance\u003c\/li\u003e\n\u003cli\u003eH3 thread limit for consistent fit with standard UNC fasteners\u003c\/li\u003e\n\u003cli\u003e4-flute straight design suitable for through-holes and shallow blind holes\u003c\/li\u003e\n\u003cli\u003eRight-hand thread direction — standard orientation for UNC fasteners\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style threading tool for use in standard 3\/4-10 UNC tapping applications across manual tap handles and machine tapping setups.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tap is installed and operated by machinists or maintenance technicians using a tap wrench, T-handle, or machine tapping chuck. Always ensure the workpiece is securely clamped and the pilot hole is drilled to the correct tap drill diameter for 3\/4-10 UNC before beginning. Apply cutting fluid throughout the tapping process to reduce heat and extend tool life. Back the tap out periodically to clear chips, especially in blind holes.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3\/4-10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer Type\u003c\/strong\u003e: Bottoming\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High-Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Gold Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 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: IMPORT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: BDNA-20744\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"IMPORT-GENERIC","offers":[{"title":"Default Title","offer_id":51709742645554,"sku":"BDNA-20744","price":40.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4ffa1c5870ffe25ad8b2a56bdec044db.jpg?v=1788459873","url":"https:\/\/voomisupply.com\/products\/import-bdna-20744-straight-flute-tap-3-4-10-unc-bottoming","provider":"Voomi Supply","version":"1.0","type":"link"}