{"product_id":"value-collection-msc-04489555-straight-flute-tap-1-3-8-12-unf","title":"Value Collection MSC-04489555 Straight Flute Tap 1-3\/8-12 Unf","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION MSC-04489555 is a straight flute tap designed for cutting internal threads in through-holes and shallow blind holes. Built from high-speed steel with a bright, uncoated finish, this tap produces 1-3\/8-12 UNF right-hand threads to a 3B class of fit. The plug chamfer — tapered over several leading threads — eases entry into the workpiece and distributes cutting forces evenly across multiple flutes. With 6 flutes and an H4 thread limit, the tap holds tight tolerances suitable for precision fastener applications in metalworking, maintenance, and repair environments. Thread length is 3 inches over an overall length of 6-1\/16 inches.\u003c\/p\u003e\n\u003cp\u003eThis tap is suited for machine shop, tool room, and field maintenance work where large-diameter unified fine threads are required. The 1-3\/8-12 UNF specification is commonly found in hydraulic fittings, aerospace fasteners, precision machinery, and heavy equipment components. The plug chamfer style makes it a general-purpose choice for through-holes or holes with sufficient depth to accommodate the chamfer lead. It is intended for use by machinists, tool and die makers, and maintenance mechanics working in ferrous and non-ferrous metals with appropriate cutting fluid applied.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1-3\/8-12 UNF right-hand thread form for unified fine thread applications\u003c\/li\u003e\n  \u003cli\u003e6-flute design distributes cutting load and improves chip control in ductile materials\u003c\/li\u003e\n  \u003cli\u003ePlug chamfer provides a balance between starting ease and thread engagement depth\u003c\/li\u003e\n  \u003cli\u003eH4 thread limit maintains tolerance for 3B class of fit requirements\u003c\/li\u003e\n  \u003cli\u003eHigh-speed steel construction offers durability across a range of workpiece materials\u003c\/li\u003e\n  \u003cli\u003eBright, uncoated finish allows direct inspection of tool condition and wear\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard OEM-style replacement or new-installation tap for applications requiring 1-3\/8-12 UNF internal threads in a 3B class of fit.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis tap should be installed and operated by a qualified machinist using a calibrated tap handle or machine spindle with appropriate torque control. Power down or lock out any machine before securing the tap in the holder. Always apply a suitable cutting fluid for the workpiece material to reduce heat buildup and extend tool life. Do not reverse the tap suddenly under load — back off periodically to break chips and prevent tap breakage.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1-3\/8-12 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: 6\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer Type\u003c\/strong\u003e: Plug\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\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6-1\/16 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\u003eWeight\u003c\/strong\u003e: 1.95 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: VALUE COLLECTION\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: MSC-04489555\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51701078950194,"sku":"MSC-04489555","price":154.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/04bb65f6d5bf24626c6d11cf46285072.jpg?v=1788397925","url":"https:\/\/voomisupply.com\/products\/value-collection-msc-04489555-straight-flute-tap-1-3-8-12-unf","provider":"Voomi Supply","version":"1.0","type":"link"}