{"product_id":"scientific-cutting-tools-tmi620-9ha-thread-mill-7-8-9","title":"Scientific Cutting Tools TMI620-9HA Thread Mill 7\/8-9","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SCIENTIFIC CUTTING TOOLS TMI620-9HA is a solid carbide helical flute thread mill designed for cutting internal UNC threads in a CNC machining environment. It produces 7\/8-9 threads with a 9 teeth-per-inch pitch and a 0.620-inch cutting diameter. The long-reach configuration and 1.489-inch length of cut allow it to machine threads in deeper bores where standard-length tooling cannot reach. This tool carries an AlTiN+ coating for improved heat resistance and tool life at elevated cutting speeds. It is intended for use by machinists and tooling specialists working with CNC milling machines.\u003c\/p\u003e\n\u003cp\u003eThis thread mill is suited for production and job-shop environments requiring precise internal UNC thread generation without a traditional tap. The long-reach design accommodates deeper bores and provides clearance in confined part geometries. With a 5\/8-inch shank diameter and 4.000-inch overall length, it fits standard CNC mill tool holders. Right-hand flute direction and a 4-flute configuration support consistent chip evacuation and thread form accuracy across a range of workpiece materials compatible with AlTiN+ coated submicron carbide tooling.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCuts 7\/8-9 UNC internal threads at 9 TPI with a 0.620-inch cutting diameter\u003c\/li\u003e\n  \u003cli\u003eLong-reach thread mill type provides access to deeper bores and recessed features\u003c\/li\u003e\n  \u003cli\u003eAlTiN+ coating improves thermal resistance and extends tool life in demanding cuts\u003c\/li\u003e\n  \u003cli\u003eSubmicron solid carbide grade delivers rigidity and edge stability\u003c\/li\u003e\n  \u003cli\u003e4-flute, right-hand helical configuration promotes efficient chip flow\u003c\/li\u003e\n  \u003cli\u003e5\/8-inch shank diameter fits standard CNC milling tool holders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-use thread milling tool for CNC machining centers requiring 7\/8-9 UNC internal thread generation with a 5\/8-inch shank interface.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and operation of this thread mill should be performed by qualified CNC machinists familiar with helical interpolation thread milling routines. Secure the shank in a properly sized collet or end mill holder and verify runout before use. Coolant-through is not supported on this tool, so ensure adequate external coolant or air blast is applied at the cutting zone. Follow all machine guarding and tool-change lockout procedures before handling or setting the tool.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 7\/8-9\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: Internal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTeeth Per Inch\u003c\/strong\u003e: 9\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 0.620 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Nominal Diameter\u003c\/strong\u003e: 0.875 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1.489 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4.000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 5\/8 inches\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\u003eThread Mill Type\u003c\/strong\u003e: Long Reach\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Submicron\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: AlTiN+\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: 0.42 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23242117\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: SCIENTIFIC CUTTING TOOLS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: TMI620-9HA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SCIENTIFIC CUTTING TOOLS","offers":[{"title":"Default Title","offer_id":52043348050226,"sku":"TMI620-9HA","price":359.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/cb38e221474882878121a853d662afad_94cfc6c3-308b-4767-9a6d-e285f5d3a58c.jpg?v=1790028994","url":"https:\/\/voomisupply.com\/products\/scientific-cutting-tools-tmi620-9ha-thread-mill-7-8-9","provider":"Voomi Supply","version":"1.0","type":"link"}