{"product_id":"scientific-cutting-tools-tm080-40a-thread-mill-4-40-unc","title":"Scientific Cutting Tools TM080-40A Thread Mill 4-40 Unc","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SCIENTIFIC CUTTING TOOLS TM080-40A is a straight flute thread mill designed for cutting internal UNC threads in the 4 to 40 size range. Built from submicron-grade solid carbide and coated with AlTiN+, this tool delivers consistent thread form and extended tool life in ferrous and hardened materials. The 3-flute geometry provides stable cutting action with adequate chip clearance. The 0.08 inch cutting diameter and 0.21 inch length of cut make this tool well suited for small-diameter internal threading operations where rigidity and precision are critical. Shank diameter is 0.25 inches with a 2.5 inch overall length. Installed by machinists and tool and die professionals working on CNC machining centers.\u003c\/p\u003e\n\u003cp\u003eThis thread mill is used for internal threading in small-hole applications on CNC machining centers with helical interpolation capability. The straight flute design is appropriate for through-hole and shallow blind-hole threading where chip evacuation is manageable without coolant-through capability. Typical applications include producing 4-40 UNC threaded features in aluminum, steel, stainless steel, and similar machinable alloys. The AlTiN+ coating adds heat resistance and surface hardness, making the tool effective in dry or semi-dry cutting conditions common in production environments.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSubmicron-grade solid carbide blank for high rigidity and wear resistance in small-diameter tooling\u003c\/li\u003e\n  \u003cli\u003eAlTiN+ coating improves heat resistance and tool life in ferrous and abrasive materials\u003c\/li\u003e\n  \u003cli\u003e3 straight flutes provide stable cutting geometry for 4-40 UNC internal thread milling\u003c\/li\u003e\n  \u003cli\u003e0.08 inch cutting diameter and 0.21 inch length of cut sized for small-hole thread milling\u003c\/li\u003e\n  \u003cli\u003e0.25 inch shank diameter for standard ER or set-screw toolholders on CNC machining centers\u003c\/li\u003e\n  \u003cli\u003eNo coolant-through requirement simplifies setup in standard spindle configurations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in CNC machining centers capable of helical interpolation for cutting 4 to 40 UNC internal threads in workpieces requiring small-diameter thread milling.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis tool is installed and operated by machinists on CNC machining centers using helical interpolation cycles. Secure the 0.25 inch shank in a properly sized, clean toolholder and verify runout before beginning a thread milling operation. Do not use this tool in manual or non-interpolating machine setups. Follow all shop safety protocols and machine-specific feed and speed recommendations from the manufacturer when programming thread mill cycles.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 4 to 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: UNC\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: 0.08 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.21 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 Type\u003c\/strong\u003e: Straight\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\u003eStaggered Tooth\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 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: TM080-40A\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SCIENTIFIC CUTTING TOOLS","offers":[{"title":"Default Title","offer_id":52069157142834,"sku":"TM080-40A","price":188.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6fcbee8aa3eba7e84fb3a6e694077dab.jpg?v=1790047534","url":"https:\/\/voomisupply.com\/products\/scientific-cutting-tools-tm080-40a-thread-mill-4-40-unc","provider":"Voomi Supply","version":"1.0","type":"link"}