{"product_id":"value-collection-jy4910287-straight-flute-tap-1-4-28-unf","title":"Value Collection JY4910287 Straight Flute Tap 1\/4-28 Unf","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION JY4910287 is a straight flute tap designed to cut 1\/4-28 UNF internal threads in a left-hand direction. Built from high-speed steel with a bright\/uncoated finish, it features four flutes and a plug chamfer for standard through-hole and blind-hole threading operations. The H3 thread limit keeps the finished thread within 3B class of fit tolerances, making it suitable for general-purpose fastener applications where a reliable thread form is required. Overall length is 2.5 inches. Machinists, tool and die makers, and maintenance technicians use this tap in manual tap handles or low-speed machine setups.\u003c\/p\u003e\n\u003cp\u003eThis tap is intended for use in metalworking and maintenance environments where left-hand threaded fasteners must be cut or repaired. Typical applications include threading steel, aluminum, and other machinable materials to accept left-hand 1\/4-28 UNF fasteners. The plug chamfer style requires a pre-drilled hole of the correct tap drill size and is suited for both through-hole threading and starting threads in a blind hole before finishing with a bottoming tap.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eLeft-hand thread direction for applications requiring reverse-thread fasteners\u003c\/li\u003e\n  \u003cli\u003e1\/4-28 UNF thread form with 3B class of fit tolerance\u003c\/li\u003e\n  \u003cli\u003eH3 thread limit for consistent fit with standard UNF fasteners\u003c\/li\u003e\n  \u003cli\u003ePlug chamfer style for general through-hole and blind-hole use\u003c\/li\u003e\n  \u003cli\u003eHigh-speed steel construction provides durability across a range of machinable metals\u003c\/li\u003e\n  \u003cli\u003eBright\/uncoated finish with no coolant-through feature — suitable for hand tapping and light machine use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard replacement or supplemental tap for 1\/4-28 UNF left-hand thread applications in manual tap handles and compatible low-speed tapping machines accepting straight-shank taps.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eA licensed machinist or experienced technician should verify the correct tap drill diameter before use to achieve proper thread engagement. Power down any machine tool completely before mounting or removing the tap. Use appropriate cutting fluid for the workpiece material to extend tap life and improve thread quality. Left-hand taps must be turned counterclockwise to cut — confirm thread direction before beginning to avoid workpiece damage.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-28\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Left 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\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer\u003c\/strong\u003e: Plug\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5 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: 0.0379 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: JY4910287\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51691822743858,"sku":"JY4910287","price":20.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/2dfcfebfa52e6f6dbf6beec8aee68af7.jpg?v=1788290147","url":"https:\/\/voomisupply.com\/products\/value-collection-jy4910287-straight-flute-tap-1-4-28-unf","provider":"Voomi Supply","version":"1.0","type":"link"}