{"product_id":"scientific-cutting-tools-tmlr100-40a-thread-mill-6-40","title":"Scientific Cutting Tools TMLR100-40A Thread Mill 6-40","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SCIENTIFIC CUTTING TOOLS TMLR100-40A is a solid carbide helical flute thread mill designed for cutting internal 6-40 UNF threads. Built from submicron-grade carbide and coated with AlTiN+, it handles demanding threading operations in hardened and abrasive materials where high-speed steel tooling falls short. The three-flute, right-hand configuration provides smooth chip evacuation and stable cutting action. With a cutting diameter of 0.1000 inches and a length of cut of 0.2600 inches, this tool is suited for tight-tolerance internal thread milling on CNC machining centers. Machinists and toolroom professionals install and operate this tool as part of programmed helical interpolation routines.\u003c\/p\u003e\n\u003cp\u003eThis thread mill is intended for internal 6-40 UNF thread applications in production and precision machining environments. The long-reach thread mill type makes it appropriate for applications where clearance or depth requires extended reach beyond a standard-length tool. It is used on CNC milling machines capable of helical interpolation. Typical materials include aluminum, stainless steel, titanium, and hardened alloys where the AlTiN+ coating provides heat resistance and extended tool life. The 1\/4-inch shank diameter allows use in standard collet chucks and toolholders common in CNC setups.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid submicron carbide construction for rigidity and wear resistance in demanding materials\u003c\/li\u003e\n  \u003cli\u003eAlTiN+ coating provides heat resistance and extends tool life in abrasive and hardened workpieces\u003c\/li\u003e\n  \u003cli\u003eThree right-hand helical flutes for efficient chip evacuation during internal thread milling\u003c\/li\u003e\n  \u003cli\u003eLong-reach thread mill type for clearance-sensitive or deeper threading applications\u003c\/li\u003e\n  \u003cli\u003eCuts 6-40 UNF internal threads with a 0.1000-inch cutting diameter and 0.2600-inch length of cut\u003c\/li\u003e\n  \u003cli\u003e2.5-inch overall length with a 1\/4-inch shank for compatibility with standard CNC collet systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use on CNC machining centers capable of helical interpolation to produce internal 6-40 UNF threads. Compatible with standard 1\/4-inch collet chucks and toolholders.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis tool is installed by machinists in CNC collet chucks or toolholders rated for the 1\/4-inch shank diameter. Ensure the tool is fully seated and the collet torqued to the toolholder specification before running. Thread milling requires a properly programmed helical interpolation toolpath  -  confirm G-code and thread parameters before cutting. Coolant through is not supported on this tool; use external coolant or air blast as appropriate 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: 6-40\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: UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTeeth Per Inch\u003c\/strong\u003e: 40 TPI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 0.1000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.2600 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.25 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\/Finish\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: 0.05 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: TMLR100-40A\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SCIENTIFIC CUTTING TOOLS","offers":[{"title":"Default Title","offer_id":52101549982002,"sku":"TMLR100-40A","price":141.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/2b3b42b3dd1497cb3e9ab244c1a3e280_13d11569-b650-494d-871b-72f59ee122fa.jpg?v=1790069857","url":"https:\/\/voomisupply.com\/products\/scientific-cutting-tools-tmlr100-40a-thread-mill-6-40","provider":"Voomi Supply","version":"1.0","type":"link"}