{"product_id":"hertel-k008558as-spiral-flute-tap-5-8-11-unc-4-flute","title":"Hertel K008558AS Spiral Flute Tap 5\/8-11 Unc 4 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL K008558AS is a spiral flute tap designed to cut internal threads in blind holes where chip evacuation is critical. The spiral flute geometry pulls chips up and out of the hole during threading, making it well suited for bottoming applications where threads must extend close to the bottom of the bore. Built from high speed steel, this tap handles a wide range of workpiece materials encountered in production and maintenance machining environments. It features a 4-flute, right-hand flute configuration with a 52-degree helix angle, a right-hand thread, and an H3 thread limit for consistent tolerance control in 3B class fits.\u003c\/p\u003e\n\u003cp\u003eThis tap is used in general machining, tool and die, and maintenance repair operations requiring a 5\/8-11 UNC thread in blind hole applications. The bottoming chamfer allows threading to within a few thread pitches of the hole bottom, which is common in fixture work, structural fastener applications, and precision assemblies. It is appropriate for use in manual tapping operations as well as CNC machining centers with rigid tapping capability. Coolant-through capability is not available on this tap.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSpiral flute design evacuates chips upward out of blind holes during threading\u003c\/li\u003e\n  \u003cli\u003eBottoming chamfer enables threading close to the bottom of blind bores\u003c\/li\u003e\n  \u003cli\u003e52-degree helix angle promotes smooth chip flow in a variety of materials\u003c\/li\u003e\n  \u003cli\u003eH3 thread limit maintains consistent tolerance for 3B class of fit requirements\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel construction provides durability across common workpiece materials\u003c\/li\u003e\n  \u003cli\u003eRight-hand thread and right-hand flute for standard tapping operations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for cutting 5\/8-11 UNC right-hand internal threads in blind hole applications requiring a 3B class of fit with an H3 thread limit.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis tap is installed and operated by machinists and toolroom technicians using a tapping head, tap wrench, or CNC rigid tapping cycle. Before use, confirm the correct tap drill size for a 5\/8-11 UNC thread is used to prepare the hole. Ensure the workpiece is securely fixtured and the tap is properly aligned to avoid tap breakage. Use an appropriate cutting fluid for the workpiece material to extend tool life and improve thread quality.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/8-11\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\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\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\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: 52 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer\u003c\/strong\u003e: Bottoming\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3-13\/16 inches\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: 0.44 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: HERTEL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: K008558AS\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51746501722418,"sku":"K008558AS","price":102.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ff1f07465a21b45aaeb41dd0c4dcee0e.jpg?v=1788870860","url":"https:\/\/voomisupply.com\/products\/hertel-k008558as-spiral-flute-tap-5-8-11-unc-4-flute","provider":"Voomi Supply","version":"1.0","type":"link"}