{"product_id":"value-collection-msc-04919106-straight-flute-tap-1-8-unc","title":"Value Collection MSC-04919106 Straight Flute Tap 1-8 Unc","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION MSC-04919106 is a straight flute tap designed for cutting 1-8 UNC internal threads in a left-hand direction. Built from high-speed steel (HSS) with a bright, uncoated finish, this tap delivers consistent thread quality in a range of ferrous and non-ferrous materials. The taper chamfer distributes cutting forces gradually across the lead threads, reducing the chance of tap breakage on entry. With a 2.5-inch thread length and a 5.125-inch overall length, it provides ample reach for deeper through-hole and blind-hole applications where left-hand thread profiles are required. A 4-flute design provides rigidity and chip control appropriate for the 1-inch major diameter.\u003c\/p\u003e\n\u003cp\u003eThis tap is suited for machine shop, maintenance, and manufacturing environments where left-hand threaded fastener applications are specified. The H4 thread limit and 3B class of fit make it appropriate for standard commercial-tolerance internal thread production. Typical applications include threading large-diameter holes in fixtures, tooling, and structural components where left-hand threads are specified to resist loosening under rotational loads. Installation is performed by machinists and toolmakers using conventional or CNC tapping equipment.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eLeft-hand thread direction for applications requiring reverse-thread fastening\u003c\/li\u003e\n  \u003cli\u003eTaper chamfer distributes entry cutting forces across multiple lead threads to reduce breakage risk\u003c\/li\u003e\n  \u003cli\u003eHigh-speed steel construction provides hardness and wear resistance across a broad range of workpiece materials\u003c\/li\u003e\n  \u003cli\u003eH4 thread limit with 3B class of fit for standard commercial-tolerance internal threads\u003c\/li\u003e\n  \u003cli\u003e4-flute configuration offers rigidity and chip clearance appropriate to 1-inch diameter tapping\u003c\/li\u003e\n  \u003cli\u003eBright, uncoated finish suitable for use with a wide range of cutting fluids and lubricants\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard replacement or production tap for 1-8 UNC left-hand internal thread applications in machine shop, maintenance, and manufacturing settings. Verify spindle direction and tapping head capability for left-hand operation before use.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eLeft-hand taps require a spindle or tapping head configured for reverse (counterclockwise) rotation when viewed from above — confirm equipment compatibility before setup. Apply appropriate cutting fluid for the workpiece material to extend tap life and improve thread finish. Secure the workpiece firmly and align the tap perpendicular to the hole before engagement. A licensed machinist or qualified toolmaker should perform setup and operation in accordance with applicable shop safety procedures.\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: 1-8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Left Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer\u003c\/strong\u003e: Taper\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 Length\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 5.125 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High-Speed Steel (HSS)\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  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241600\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-04919106\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51689745744178,"sku":"MSC-04919106","price":109.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/fc600560f68c01fb5341e90bee6f26b0.jpg?v=1788263743","url":"https:\/\/voomisupply.com\/products\/value-collection-msc-04919106-straight-flute-tap-1-8-unc","provider":"Voomi Supply","version":"1.0","type":"link"}