{"product_id":"value-collection-msc-04609459-spiral-flute-tap-4-40-unc","title":"Value Collection MSC-04609459 Spiral Flute Tap 4-40 Unc","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION MSC-04609459 is a spiral flute tap designed for cutting 4-40 UNC internal threads in blind holes where a bottoming chamfer is required. Manufactured from high-speed steel with a bright, uncoated finish, it features a 45-degree helix angle and a fast flute style that evacuates chips upward out of the hole during the tapping operation. The 2-flute geometry suits applications where chip clearance space is limited. At 1.875 inches overall length, this tap fits standard tap handles and machine tool holders used in precision machining, maintenance, and fabrication work.\u003c\/p\u003e\n\u003cp\u003eThis tap is suited for threading 4-40 UNC holes in ferrous and non-ferrous materials in production and jobsite environments. The bottoming chamfer allows threads to be cut to within 1-2 threads of the bottom of a blind hole, making it the correct choice when full thread depth close to the hole bottom is required. It carries a 2B\/3B class of fit, covering the standard range of tolerance classes used in general mechanical assembly and close-tolerance fastener applications. Right-hand thread direction is standard for conventional 4-40 UNC fastener systems.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eBottoming chamfer for maximum thread depth in blind holes\u003c\/li\u003e\n  \u003cli\u003e45-degree helix angle with fast flute style for efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003eH2 thread limit for 2B\/3B class of fit tolerance control\u003c\/li\u003e\n  \u003cli\u003eHigh-speed steel construction for durability across ferrous and non-ferrous materials\u003c\/li\u003e\n  \u003cli\u003eBright\/uncoated finish — no additional coating buildup on thread form\u003c\/li\u003e\n  \u003cli\u003eRight-hand spiral flute direction matches standard right-hand thread cutting\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in standard tap handles, T-handle wrenches, and machine tool tap holders sized for 4-40 UNC taps. Compatible with applications requiring 2B or 3B class of fit internal threads per UNC thread standards.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eSecure the workpiece fully before tapping to prevent movement during thread cutting. Apply an appropriate cutting fluid for the material being tapped to extend tool life and improve thread finish. Do not force the tap if resistance increases sharply — back off to break the chip before continuing. Blind hole depth should be drilled to accommodate the tap's non-cutting lead geometry when full thread depth to the bottom is required.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 4-40\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Style\u003c\/strong\u003e: Fast Spiral\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\u003eClass of Fit\u003c\/strong\u003e: 2B\/3B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.875 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: 0.08 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-04609459\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51694983381298,"sku":"MSC-04609459","price":22.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7eb326cabceea5789622cea620a31ce6.jpg?v=1788330180","url":"https:\/\/voomisupply.com\/products\/value-collection-msc-04609459-spiral-flute-tap-4-40-unc","provider":"Voomi Supply","version":"1.0","type":"link"}