{"product_id":"scientific-cutting-tools-tmlr370-20ela-thread-mill-1-2-20","title":"Scientific Cutting Tools TMLR370-20ELA Thread Mill 1\/2-20","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SCIENTIFIC CUTTING TOOLS TMLR370-20ELA is a helical flute thread mill designed for cutting internal 1\/2-20 UNF threads in demanding machining environments. Built from submicron-grade solid carbide and coated with AlTiN+, this tool delivers high wear resistance and thermal stability at elevated cutting speeds. With a 3-flute, right-hand helix design and a long-reach configuration, it produces clean, accurate threads in a single helical interpolation pass. The 0.37-inch cutting diameter and 1.2-inch length of cut make it well-suited for threading operations where tool rigidity and reach are both critical factors. Licensed machinists and CNC operators in precision manufacturing and metalworking shops are the primary users.\u003c\/p\u003e\n\u003cp\u003eThis thread mill is used for internal UNF thread milling on CNC machining centers capable of helical interpolation. It is suited for production and job-shop environments machining ferrous and non-ferrous alloys where a single tool must handle thread sizing and finishing in one operation. The long-reach design accommodates deeper bores or setups where a standard-reach tool cannot achieve the required depth without interference. The 3\/8-inch shank diameter provides a secure grip in standard collet or end mill holders.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSubmicron-grade solid carbide construction for enhanced rigidity and edge retention\u003c\/li\u003e\n  \u003cli\u003eAlTiN+ coating provides high-temperature oxidation resistance and extended tool life\u003c\/li\u003e\n  \u003cli\u003e3-flute, right-hand helical geometry for efficient chip evacuation during thread milling\u003c\/li\u003e\n  \u003cli\u003eLong-reach design allows threading in deeper bores with reduced interference risk\u003c\/li\u003e\n  \u003cli\u003eCuts 1\/2-20 UNF internal threads at 20 TPI in a single helical interpolation pass\u003c\/li\u003e\n  \u003cli\u003eNo coolant-through design  -  suitable for use with external coolant or mist lubrication\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for CNC machining centers capable of helical interpolation, used to produce internal 1\/2-20 UNF threads. Requires a 3\/8-inch collet or end mill holder for proper shank retention.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and operation should be performed by qualified CNC machinists or tooling technicians. Ensure the spindle is fully stopped and the machine is in a safe state before loading or unloading the tool. Verify collet size matches the 3\/8-inch shank before torquing the holder to the manufacturer-specified value. Program helical interpolation parameters according to the thread pitch and cutting diameter before starting the operation  -  do not use this tool in a conventional tapping cycle.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/2-20\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 (TPI)\u003c\/strong\u003e: 20\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 0.37 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Nominal Diameter\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut (LOC)\u003c\/strong\u003e: 1.2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length (OAL)\u003c\/strong\u003e: 3.5 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\u003eNumber of Flutes\u003c\/strong\u003e: 3\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: 0.06 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: TMLR370-20ELA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SCIENTIFIC CUTTING TOOLS","offers":[{"title":"Default Title","offer_id":52101930254642,"sku":"TMLR370-20ELA","price":177.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7663d4873b9b12951632c2fc4e6d94d4.jpg?v=1790070125","url":"https:\/\/voomisupply.com\/products\/scientific-cutting-tools-tmlr370-20ela-thread-mill-1-2-20","provider":"Voomi Supply","version":"1.0","type":"link"}