{"product_id":"value-collection-jy4863189-straight-flute-tap-1-3-16-18-unef","title":"Value Collection JY4863189 Straight Flute Tap 1-3\/16-18 Unef","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION JY4863189 is a straight flute tap designed to cut 1-3\/16-18 UNEF internal threads in a wide range of metalworking applications. Built from high-speed steel with a bright, uncoated finish, this bottoming-chamfer tap is engineered to thread holes close to the bottom, making it the correct choice when thread depth must run nearly the full depth of a blind bore. With 6 flutes and an H4 thread limit, the tap produces consistent 3B class of fit threads suitable for precision fastener assemblies. Overall length is 4 inches. Installation is performed by machinists and toolroom technicians in production and maintenance environments.\u003c\/p\u003e\n\u003cp\u003eThis tap is intended for threading operations where a UNEF fine-thread form is required in blind holes or when maximum thread engagement near the bottom of a hole is critical. The bottoming chamfer leaves only 1 to 2 threads of lead-in, so a plug or taper tap is typically used first to start and advance the thread before the bottoming tap is run in to complete the full thread depth. The right-hand thread direction is standard for the vast majority of threaded fastener applications in industrial and maintenance machining.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eBottoming chamfer allows threading to within 1-2 threads of the bottom of a blind hole\u003c\/li\u003e\n  \u003cli\u003e6-flute design provides additional support and stability during cutting\u003c\/li\u003e\n  \u003cli\u003eH4 thread limit maintains consistent 3B class of fit for precision assemblies\u003c\/li\u003e\n  \u003cli\u003eHigh-speed steel construction withstands the heat and wear demands of production tapping\u003c\/li\u003e\n  \u003cli\u003eBright, uncoated finish is compatible with most cutting fluids and oils\u003c\/li\u003e\n  \u003cli\u003eRight-hand thread direction, no coolant-through passages — suited for manual and machine tapping with flood or drip lubrication\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in any standard tap holder or tapping head accepting the appropriate shank size for a 1-3\/16-18 UNEF bottoming tap. Verify machine spindle and holder compatibility before installation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eA qualified machinist should install this tap using a properly sized tap wrench, tapping head, or CNC rigid-tapping spindle. Always apply an appropriate cutting fluid or tapping oil before and during the operation to reduce heat and extend tool life. When tapping blind holes, use a taper or plug tap first to establish the thread, then follow with this bottoming tap to complete thread depth. De-energize and lock out any power equipment before changing or inspecting tooling.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTap Type\u003c\/strong\u003e: Straight Flute\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1-3\/16-18\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNEF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer\u003c\/strong\u003e: Bottoming\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: H4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 6\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: 4 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\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOversize\u003c\/strong\u003e: No\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: VALUE COLLECTION\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: JY4863189\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51691592548658,"sku":"JY4863189","price":165.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/73c60044ca0e2dffcc5cd5ef6c1d2800.jpg?v=1788287476","url":"https:\/\/voomisupply.com\/products\/value-collection-jy4863189-straight-flute-tap-1-3-16-18-unef","provider":"Voomi Supply","version":"1.0","type":"link"}