{"product_id":"scientific-cutting-tools-tmi335-20h-thread-mill-7-16-20","title":"Scientific Cutting Tools TMI335-20H Thread Mill 7\/16-20","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SCIENTIFIC CUTTING TOOLS TMI335-20H is a solid carbide helical flute thread mill designed for cutting internal UNF threads. Built to a 7\/16-20 thread specification, the tool features a 0.335-inch cutting diameter and a right-hand flute direction with 4 flutes that produce clean, accurate thread forms in a single helical pass. The long-reach design and 0.87-inch length of cut make it suited for threading operations where reach into a bore is required. Manufactured from submicron-grade carbide, the TMI335-20H delivers consistent tool life in ferrous and non-ferrous materials without a supplemental coating.\u003c\/p\u003e\n\u003cp\u003eThis thread mill is used in CNC machining centers for producing 7\/16-20 UNF internal threads in production and job-shop environments. The long-reach geometry is well matched to applications where a standard-length tool cannot access the thread zone. Machinists and tooling technicians working in aerospace, automotive, and general metalworking will find this tool a direct fit for close-tolerance internal threading operations where a single-point tap is not preferred.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e7\/16-20 UNF internal thread specification with 20 teeth per inch\u003c\/li\u003e\n  \u003cli\u003e0.335-inch cutting diameter and 0.87-inch length of cut for long-reach access\u003c\/li\u003e\n  \u003cli\u003e4 right-hand helical flutes for smooth chip evacuation\u003c\/li\u003e\n  \u003cli\u003eSubmicron-grade solid carbide construction for extended tool life\u003c\/li\u003e\n  \u003cli\u003eBright\/uncoated finish compatible with a wide range of cutting fluids and workpiece materials\u003c\/li\u003e\n  \u003cli\u003eLong-reach thread mill type suited for deep or restricted-access bore applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a CNC thread mill for cutting 7\/16-20 UNF internal threads; requires a 3\/8-inch shank tool holder and a CNC machining center capable of helical interpolation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use of this tool should be performed by a qualified machinist or CNC tooling technician. Secure the 3\/8-inch shank in a properly sized collet or end mill holder and verify runout before cutting. Coolant-through is not available on this tool, so adequate external coolant or cutting fluid application is recommended to manage heat and chip removal. Follow the machine tool builder guidelines and applicable shop safety standards when setting feeds, speeds, and depth of cut for the workpiece material.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 7\/16-20\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: Internal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTeeth Per Inch\u003c\/strong\u003e: 20\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 0.335 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.87 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Nominal Diameter\u003c\/strong\u003e: 0.4375 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\/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: 3 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: SCIENTIFIC CUTTING TOOLS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: TMI335-20H\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SCIENTIFIC CUTTING TOOLS","offers":[{"title":"Default Title","offer_id":51972305912114,"sku":"TMI335-20H","price":236.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/bf0502d2047f746bade6e64bf2b972dc.jpg?v=1789965978","url":"https:\/\/voomisupply.com\/products\/scientific-cutting-tools-tmi335-20h-thread-mill-7-16-20","provider":"Voomi Supply","version":"1.0","type":"link"}