{"product_id":"value-collection-jy63328421-spiral-flute-tap-1-2-20-unf","title":"Value Collection JY63328421 Spiral Flute Tap 1\/2-20 Unf","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION JY63328421 is a spiral flute tap designed for cutting 1\/2-20 UNF internal threads in a wide range of non-ferrous and light metals. Built from high-speed steel with a bright, uncoated finish, this tap features four right-hand spiral flutes with a 45-degree helix angle that evacuates chips up and out of the hole during the tapping operation. The bottoming chamfer geometry allows threading to be carried nearly to the bottom of a blind hole. Overall length is 3.375 inches. It is sized to a 3B class of fit and an H3 thread limit, making it suitable for general-purpose threaded assemblies that require a standard tolerance fit.\u003c\/p\u003e\u003cp\u003eThis tap is intended for use in materials including aluminum, brass, copper, magnesium, and zinc die cast. The fast-flute spiral design and 45-degree helix angle make it particularly effective in gummy or ductile materials where chip packing in straight-flute taps is a concern. It is suited for both manual tapping and CNC or turret machine applications where controlled feed rates can be maintained. Coolant-through capability is not supported on this tap, so external cutting fluid application is recommended when tapping at higher speeds or in tighter tolerance work.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e1\/2-20 UNF thread size with H3 thread limit and 3B class of fit for standard tolerance assemblies\u003c\/li\u003e\n\u003cli\u003eBottoming chamfer for threading close to the bottom of blind holes\u003c\/li\u003e\n\u003cli\u003e45-degree right-hand spiral flutes evacuate chips upward, reducing packing in ductile materials\u003c\/li\u003e\n\u003cli\u003eHigh-speed steel construction provides good wear resistance across non-ferrous applications\u003c\/li\u003e\n\u003cli\u003eBright, uncoated finish — compatible with most cutting fluids and oils\u003c\/li\u003e\n\u003cli\u003eRight-hand thread direction; overall length 3.375 inches\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for tapping 1\/2-20 UNF threads in aluminum, brass, copper, magnesium, and zinc die cast workpieces. Suitable for use with standard 1\/2-20 tap holders and tapping chucks that accept the appropriate shank diameter for this tap size.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tap should be installed by a machinist or tooling professional familiar with threading operations. Secure the workpiece fully before beginning the tapping cycle, and ensure proper alignment to avoid tap breakage. Apply a suitable cutting fluid or tapping oil to extend tool life and improve thread finish, particularly in copper and aluminum. When tapping blind holes, confirm the hole depth provides adequate clearance beyond the required thread depth before advancing the tap.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/2-20 UNF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\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: Fast\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 45 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer\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\u003eClass of Fit\u003c\/strong\u003e: 3B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.375 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High-Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Aluminum, Brass, Copper, Magnesium, Zinc Die Cast\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.25 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: VALUE COLLECTION\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: JY63328421\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51723315806514,"sku":"JY63328421","price":53.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/14738f9fdadba1247e5591146954120d.jpg?v=1788603112","url":"https:\/\/voomisupply.com\/products\/value-collection-jy63328421-spiral-flute-tap-1-2-20-unf","provider":"Voomi Supply","version":"1.0","type":"link"}