{"product_id":"hertel-k008355as-1-4-28-unf-straight-flute-tap-hss-plug","title":"Hertel K008355AS 1\/4-28 Unf Straight Flute Tap Hss Plug","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL K008355AS is a straight flute tap designed for cutting internal 1\/4-28 UNF right-hand threads in a wide range of materials. Built from high-speed steel with a bright, uncoated finish, this tap delivers reliable performance in general-purpose threading applications. The plug chamfer — typically 3 to 5 threads — allows for use in both through-holes and deeper blind holes when working clearance permits. With a 3-flute configuration and an H3 thread limit, the K008355AS maintains dimensional control appropriate for a 3B class of fit. Overall length is 2.5 inches, and the tool weighs 0.35 pounds. Machinists, tool-and-die workers, and maintenance technicians reach for this tap when precision UNF thread production is required.\u003c\/p\u003e\n\u003cp\u003eThis tap is suited for threading operations in ferrous and non-ferrous metals, plastics, and similar materials where a 1\/4-28 UNF thread form is specified. The straight flute geometry works well in shorter-chipping materials and is common in manual tapping, drill press, and light CNC or turret applications. The plug chamfer style makes it a standard first-choice tool when both through-hole and shallow blind-hole work is anticipated on the same job. It is packaged individually and sold as a single-piece unit.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1\/4-28 UNF thread size with right-hand thread direction\u003c\/li\u003e\n  \u003cli\u003ePlug chamfer for versatile use in through-holes and accessible blind holes\u003c\/li\u003e\n  \u003cli\u003e3 straight flutes suited to shorter-chipping materials\u003c\/li\u003e\n  \u003cli\u003eH3 thread limit maintains dimensional tolerance for 3B class of fit\u003c\/li\u003e\n  \u003cli\u003eHigh-speed steel construction provides good wear resistance in general-purpose threading\u003c\/li\u003e\n  \u003cli\u003eBright, uncoated finish — compatible with standard cutting fluids\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard 1\/4-28 UNF straight flute plug tap suitable for use with manual tap handles, tapping heads, and machine tool setups that accept standard tap shanks in this size range.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eTapping should be performed by a qualified machinist or maintenance technician familiar with thread-cutting procedures and appropriate cutting fluid selection for the workpiece material. Secure the workpiece firmly and ensure the tap is started perpendicular to the surface to avoid thread distortion or tap breakage. Always apply cutting fluid appropriate to the material being tapped, and back the tap off periodically to break chips when working in deeper holes. Worn or damaged taps should be replaced before use to prevent thread damage or tool failure.\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: Right 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\u003eChamfer Type\u003c\/strong\u003e: Plug\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Straight\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: 0.35 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: HERTEL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: K008355AS\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51746696102194,"sku":"K008355AS","price":19.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/2328eb27a5c56010b404c8452e05d4aa.jpg?v=1788872917","url":"https:\/\/voomisupply.com\/products\/hertel-k008355as-1-4-28-unf-straight-flute-tap-hss-plug","provider":"Voomi Supply","version":"1.0","type":"link"}